Contents
Welcome to Chaosmos Game Rules
Objective
The objective of the game is to find and possess the Ovoid, an artifact of immense power. The Ovoid is hidden in one of the many planets in the universe, and as a player, my goal is to explore, search, and strategize to obtain it and secure victory for myself.
Components
The game consists of various components:
- Game board: a representation of the universe, with different planets and Space Portal Passages connecting them.
- Planet cards: each card represents a planet and provides information about its properties and special abilities.
- Matter cards: cards that represent valuable items or elements that can be used for trading or enhancing player abilities.
- Alien cards: cards that represent different alien species inhabiting the universe, each with its unique abilities and attributes.
- Player tokens: markers used to represent the players’ positions on the game board.
- Ovoid card: a special card that represents the hidden Ovoid artifact.
- Other various tokens and markers.
Gameplay
The game proceeds in rounds, with each round consisting of several phases:
- Planning Phase: In this phase, players secretly choose their actions for the round by selecting Action Cards from their hand, which are then revealed simultaneously.
- Reveal Phase: Players reveal their chosen Action Cards and resolve their actions in a predetermined order.
- Search Phase: Players have the opportunity to search planets by spending time in the search square of a planet. Searching allows players to find Matter Cards and potentially the Ovoid card if it is present on the planet.
- Movement Phase: Players can use Space Portal Passages to move between planets or interact with other players and objects on certain planets.
- Event Phase: An event card is drawn, introducing unpredictable events into the game, such as planetary changes or encounters with aliens.
The game continues until one player finds and possesses the Ovoid card, which triggers the end of the game. At this point, the player with the Ovoid is declared the winner and achieves victory.
Conclusion
Chaosmos is an exciting and strategic game that involves exploration, decision-making, and interaction with other players. The goal of finding and possessing the Ovoid creates a sense of urgency and tension, as players search planets and navigate the universe in search of this powerful artifact. With its unique gameplay mechanics and unpredictable events, Chaosmos offers an immersive and challenging gaming experience that is sure to captivate players of all skill levels.

Hey there! So, picture this: you’re a super stealthy alien agent on a top-secret mission to locate and seize the Ovoid – the most powerful object ever, which pretty much determines the fate of the entire universe. And guess what? Your biggest advantage is your mad skills in bluffing, misdirection, and all things deceitful.
Chaosmos is an awesome game that puts you in the shoes of this covert agent. It’s all about using your smarts to explore different planets, scrounge up weapons and gear, and, most importantly, keep the Ovoid hidden from your sneaky opponents.
What’s Inside the Box

- 10 Planet Hexes
- 6 Wormhole Tiles
- 4 Asteroid Fields
- Chaos Clock and Cosmic Pool
- Void
- 10 Alien Sheets
- 10 Alien Miniatures
- Alien Screens
- 76 Equipment Cards
- 5 Tip Cards
- 10 Planet Envelopes
- Envelope Box
- 4 Combat Dice
- 18 Hypertokens
- 4 Base Tokens
- 80 Landing Flags
- 16 Planet Effect Tokens
- 10 Upgrade Tiles
- 3 wormhole tokens
- 48 chaos tokens
- Instructions
Object of the Game
If you want to win the game, you need to have the Ovoid card in your hand when the Chaos Clock reaches zero. Sounds simple enough, right?
In the game, I get to make three moves each turn. I can choose to do a variety of actions that will move me closer to victory. I can move around the board, take control of planets to find new equipment, attack other players to steal their cards, and play cards from my hand.
Each planet in the game has a corresponding envelope that holds equipment cards. When I’m on a planet, I can take any cards I want. But I have to be careful, because I can only hold up to seven cards in my hand at a time. So I have to leave some cards behind.
While on a planet, I can also activate Traps and Vaults to protect it from my opponents. This will help me maintain control and prevent my opponents from taking it away from me.
Now, let’s talk about combat. When I attack another player, we both roll two dice to determine our combat scores. But it’s not just luck – I can also play weapon and defense cards from my hand to increase my score in the battle.
If I win the combat, I get to take a look at my opponent’s hand and steal any card I want. Or, even better, I can banish my opponent to any planet, putting them at a disadvantage and giving me a chance to take the lead.
Now, keep an eye on the Chaos Clock. At the end of my turn, I click it down by one. When it reaches zero, the player who is holding the Ovoid card in their hand is the winner. So I need to make sure I have the Ovoid in my possession when the clock runs out!
Get Equipped!
Hey there! Let’s talk about equipment cards. They’re pretty cool, I promise! These special cards are like your weapons, defenses, and tools all rolled into one. When you’re on a mission to find the Ovoid and protect it, equipment cards are your best friend.
Now, Chaosmos doesn’t have a fancy draw deck like other games. Nope, we do things differently here. Instead, you’ll stumble upon equipment cards as you explore different planets. It’s like finding hidden treasures on your cosmic adventure!
So, how many equipment cards can you carry at once? Well, you’ve got a hand that can hold up to 7 cards. That’s pretty nifty, don’t you think? But hey, if you find more cards than you can handle, no worries! You can stash those extras in envelopes. Envelopes can hold as many cards as you want, as long as there’s at least one card face-down. It’s a neat way to keep your collection safe.
Remember, when it comes to finding the Ovoid and keeping it under wraps, having the right equipment can make all the difference. So, keep exploring those planets and gathering all the awesome equipment cards you can find. They’re your ticket to victory!
1 Cost: Cards that have an A icon require an action to play. Cards with the icon can only be played during combat. Cards without the icon can be played freely outside of combat.
2 Name: The card’s name is displayed here. Some cards make reference to other cards by name.
3 Single-Use: Yellow cards that have the icon are Single-Use. Once you play a Single-Use card, it is sent to the Void. Cards without the icon return to your hand after you resolve their effects.
4 Activation Bar: Flip cards have an activation bar to remind you of their effect when you open an envelope and find a face-up flip card.
5 Type: Certain cards have a type, which is indicated here. Some rules specifically refer to certain types, and those rules apply to all cards of that type.
6 Rules Text: Here’s how this card works. If there’s something on the card that contradicts what I’m about to tell you, you should listen to the card.
7 Set Icon: When we’re setting up the game, we might need to add or take away cards with certain set icons, depending on what type of game we’re playing.
8 Count: This tells you how many of this card you have in your deck.

Native Weapons: When you look at the art of a weapon, you’ll find ten different symbols in the lower right corner. These symbols represent the alien race that created the weapon. They come into play when you use the advanced rule of Native Weapons.
Setting Up the Game
Your First Game Setup
Does My Home Planet Have Any Special Abilities?
When you start the game, you’ll find yourself on your home planet. This is where you can connect with the Cosmic Pool and trade. Don’t worry, your home planet is just like any other planet in most respects!

- Pick your Aliens: Let’s start by choosing your alien character. There are four to choose from: Drusu, Gazmae, Haghouhen, and Vroon. Shuffle the alien sheets and deal one to each player. Each sheet will also have three hypertokens.
Set up the Board: Now, let’s set up the game board. Remove the hexes for Ob, Vorshei, Barren Planet, and Singularity Gate. Arrange the remaining hexes as shown below. Place the A wormhole tiles next to Guriwan and Jagladak. There should also be two asteroid fields placed as indicated. Don’t forget to place the Cosmic Pool and the Void next to the board. Lastly, each player’s alien miniature should be placed on their home planet (
). Take a look at the image below for reference (
).

When getting ready to play the game, the first step is to prepare the equipment deck. This involves taking out all 14 cards that have Set Icons on them and putting them aside. Then, you need to shuffle all the remaining cards without Set Icons to create the equipment deck.

Let’s Get Set Up in Cosmic Pool: I’m going to draw 6 cards and set them face-up above the Cosmic Pool. Oh, if I happen to draw the Ovoid, I’ll replace it with another card and shuffle the deck again.

Envelopes for Your Home Planets: Let’s start by dealing the cards face-down into envelopes for each player’s home planet. For a game with 4 players, each player will receive 10 cards. If there are 3 players, they will each get 12 cards. And for a game with just 2 players, each will receive 10 cards. It’s important to note that each player begins the game in control of their own home planet. (Remember the concept of “Control Planet”).

Let’s Deal with the Other Envelopes: I’ll collect the Ob and Vorshei envelopes and put them back in the game box. Next, I’ll deal 4 cards face-down into each envelope for the different planets (or 6 cards per envelope if it’s a 2 player game). Once that’s done, we can safely put those envelopes back into the envelope box.

Hey there! Let’s talk about setting the Chaos Clock. It’s pretty simple, actually. All you need to do is start the Chaos Clock at 36. Easy enough, right?

First things first, let’s get ready:
Each of us takes a peek inside our home envelope and picks up to 7 cards. The rest go back in the envelope.
Setting Up the Game (For 3-4 Players)
- Choose Your Aliens: All the alien sheets are shuffled, and two are dealt to each player. We take a sneaky look at our aliens and pick one to play, putting the other back in the game box. We then reveal our chosen aliens to each other and place three hypertokens on our alien sheets.
- Set Up the Board: We place the 10 planet hexes as shown on the right. The A and B wormhole tiles go in the corners. Three asteroid fields are placed as shown. The Cosmic Pool, Void, and Chaos Clock go at the top. Finally, each of us places our alien miniature on our home planet (
).
I’ve been thinking about how to get started on Chaosmos. To begin, shuffle all the cards that don’t have a Set Icon with the 8 cards that do. This will be your equipment deck.



Another Idea: Let’s try a fun game! Deal 4 cards face-down into each envelope, and then place those envelopes into the box. It’s like a mystery waiting to be solved!

Let’s talk about how to set up and customize your game of Cosmic Encounter. It’s important to consider different factors so that you can create a unique and exciting experience. Are you ready to dive in?
First, we’ll start by setting the Chaos Clock. For a standard game, set it at 48. If you want a shorter game, set it at 36. This will determine the length of the game and add an element of time pressure.
Next, it’s time to prepare your hands. Each player will access their home envelope and choose up to 7 cards to form their hand. Any remaining cards should be placed back in the envelope. This will give you the cards you need to negotiate and strategize during the game.
Customize Your Board Layout
Now, let’s talk about customizing the board layout to make the game even more interesting. You have the freedom to create any setup you can imagine, but here are a few recommendations to get you started:
Randomized Board: For a random and unpredictable experience, use the same configuration as the 3-4 player game setup, but mix up the locations of all the planets. Keep the asteroid fields and wormhole tiles in their usual spots to maintain some familiarity.
Build Your Own Board: If you want to have complete control over the board layout, this option is for you. Each player will receive their alien’s home planet, and the other planets, wormhole tiles, and asteroid fields will be dealt randomly. Players take turns adding one piece to the board until it is fully constructed.
First things first, let’s arrange all the planets. After that, we’ll position the asteroid fields, making sure not to block off any planet completely. Finally, we’ll place the wormhole tiles.
Setting Up the Game (2 Players)
The game setup for a 2 player game is pretty much the same as a 3-4 player game, but with a few differences:
We need to remove two aliens from the game. We’ll randomly select one alien and then find the other alien who uses the same Enviro Gear. Both these aliens, along with their alien sheets, miniatures, and home planets, go back into the game box for now. We won’t be able to play as those aliens or use their planets this time.
Board Setup: We’ll place the 8 planet hexes (excluding the two we just put back in the box) randomly around the Chaos Clock, just like we did during your first game setup. We’ll also position the asteroid fields and the wormhole tiles in a similar fashion.
Home Envelopes: Let’s start by dealing 11 cards into each player’s home envelope. This will give everyone a fair and equal number of cards to begin with.
Other Envelopes: Now, it’s time to distribute the cards to the other planets. Each planet’s envelope should receive 7 cards. However, keep in mind that we won’t be dealing any cards to the envelopes for the two unused planets.
Bonus Cards
When we’re preparing the equipment deck, we need to pay attention to the Enviro Gear cards. Some of these cards may not be suitable for any of the aliens in this particular game. In that case, we should remove those cards from the deck and replace them with bonus cards instead. These special bonus cards will add an extra element of surprise and excitement to the game!
Let’s talk about the first card, which is called Dark Resonator. This card has a unique ability that allows me to bring it back from the graveyard under certain conditions. When Dark Resonator is destroyed, I can special summon it again during my next turn. Isn’t that cool? It’s like giving it a second chance to join the fight!
Dark Resonator has a pretty good attack power and defense too. With an attack of 1300 and defense of 300, it can hold its own in battle. And if you like cards that can make unexpected moves, then you’ll love Dark Resonator. It can even change the outcome of a duel if used strategically.
Now, let’s move on to the second card, Dragodies, the Empowered Warrior.
Hi there! I want to talk to you about something called a “Replicator Seed.”
So, have you ever heard of a Replicator Seed before? Maybe not, but it’s actually a really cool thing. When someone says “Replicator Seed,” they’re talking about a special kind of seed that can make more copies of itself. It’s like magic!
Now, you might be wondering why Replicator Seeds are important. Well, let me tell you. Replicator Seeds are known as “heirloom seeds.” This means that they have been handed down from generation to generation, just like Grandma’s old recipes. They are special because they have been carefully selected and saved over time, so they have traits that make them unique and valuable.
But it’s not just their history that makes Replicator Seeds important. They also play a big role in helping to preserve biodiversity. Biodiversity is all about the variety of different plants and animals that live on Earth. It’s like having a big, beautiful garden with lots of different flowers and plants. The more diverse a garden is, the healthier and more resilient it will be.
That’s where Replicator Seeds come in. They allow us to grow lots of different types of plants, which helps to protect and preserve our natural world. By planting Replicator Seeds, we can make sure that we’re not just growing the same old plants over and over again. It’s like giving our garden a boost of diversity, which is super important for the health of our planet.
So, if you’re interested in gardening or just love nature, you might want to consider using Replicator Seeds. They’re a great way to help protect biodiversity and make sure that we have a beautiful and diverse world for generations to come.
When I play the 3rd Card, which is the Escape Pod, I get to do something really exciting. I get to choose an alien to control and then I get to take their landing flag tokens, which are these little markers that match the color of the alien I choose. The first thing I do is put a flag on my home planet, because that’s where I start the game and I already control it. But the best part is that every time I take control of a new planet, I get to put one of my flags on it and take off any flags that belong to my opponents.

In the game, we have these cool flags that don’t really change how we play, but they’re there to help us remember which planets our opponents have recently controlled.
You see, these landing flags are like little clues that we can follow to figure out what our opponents are up to. It’s kind of like following a trail of breadcrumbs.
A Guide to Playing Chaosmos
Hey there! Welcome to Chaosmos – the game of cosmic strategy and cunning. I’m here to show you the ropes of gameplay, so let’s dive right in!
When it’s your turn, here’s what you need to know: you have three actions to take, and we represent each action with an “A”. Don’t worry, though – some cards or abilities might let you perform extra actions for free!
Your Actions: You can use your actions in any way you like. Move around, take control of planets, attack opponents, and play cards. Just remember to finish one action before moving on to the next. Oh, and feel free to repeat certain actions if it helps you!
Move 
Here’s a basic action – moving. You can move one space at a time. Each planet, star, and wormhole counts as a space, but watch out for those pesky asteroid fields – no crossing allowed! You can peacefully share a space with other players too.
Planets and Stars: You can go from one planet to a neighboring star, or from one star to a neighboring planet. But you can’t move between two stars, and you can’t go to the half-stars at the edge of the board.
Wormholes: You can go between a planet and a neighboring wormhole. Treat the wormhole and all the stars it touches as one space. If two wormholes have the same letter, you can freely move between them.
Crossing the Chaos Clock: If there’s a Chaos Clock on the board, the stars on opposite sides of the clock are considered the same. You can freely move across the clock, but you can’t change direction or stop on the clock.
What is a Toxic Planet

When I play the game, each alien has a specific toxic planet assigned to them. I can choose to land on my toxic planet, but I need to find and use my Enviro Gear card if I want to attack or control the planet envelope.
Hyperspace
+ 
If I want to travel to any space on the board, I can spend a hypertoken.
Control Planet 
If I’m already on a planet and its envelope is in the envelope box, I can take control of that planet. (I can also steal control of a planet by using the ATTACK action).

- When a planet becomes dangerous to me, I need to find Enviro Gear that matches the situation. If I can’t find the right gear, I won’t be able to control the planet.
- I need to take the planet envelope from the box and open it for everyone to see. We’ll check if there’s a card facing up on top.
- If the top card inside the envelope is a flip card that’s facing up, I’ll let everyone know and follow the instructions on the card. To learn more about how flip cards work, see the section on FLIP CARDS.
Looking at the Cards: Once I gain control of a planet, I can place its envelope in front of me. I can check the cards inside at any time. As a free action or in between turns, I’m allowed to move cards back and forth between my hand and the envelope. I’ll keep control until I leave the planet.
- It’s important to keep my hand separate from the envelope.
You simply can’t hold more than 7 cards in your hand. The planet has some rules too. It always needs to have at least one card face-down and never more than one face-up card. If you’re not on the planet, you have to give the envelope back. No worries, you can do it freely or in between your turns. Now, let me explain how you can get the Ovoid. Each time you take control of a planet, you’ll discover new cards. The Ovoid could be on a planet that hasn’t been explored yet, or one of your opponents might have hidden it on a planet you have already explored.
Keep an Eye on Your Rivals: Pay close attention to what your opponents are up to and where they’re going. If you notice two players constantly battling each other or returning to the same planet, you might be witnessing a secret competition for the Ovoid. Or perhaps the quiet player has been quietly hiding it all along!
Strategize Your Fights: While it’s possible to win the game without being strong in combat, chances are you’ll need to win a few key battles in order to snatch the necessary cards. If the Ovoid is in an opponent’s possession, you might have to take it by force.
Initiate an Attack 
Target an opponent who is in the same location as you. Remember, you can only attack the same opponent once per turn.
- Engage in Combat: We start by playing combat cards. If I have a lower score than you, I’ll play cards from my hand to improve my score. If we have the same score, the attacker plays. Once my score is higher than yours, you get a chance to play combat cards to improve your score. We keep repeating this process, trying to outscore each other.
- Pass the Turn: If either of us decides not to play any more cards, we can pass. But if both of us pass in a row, it’s time to determine the winner. If not, we continue playing combat cards.
Let’s talk about two key rules in the game Chaosmos:
1. Reveal Enviro Gear: If you and the player you’re attacking are on a planet that is toxic to you, you have to show an Enviro Gear card to be able to attack. Make sure you have the right gear or you won’t be able to make your move. Remember, safety first!
2. Roll Combat Dice: Both players should roll two combat dice. These dice will determine your initial combat scores. Keep in mind that if you have a mirror card, it copies the number on your other die. Now, here’s the exciting part: if you roll an infinity symbol, you automatically win the combat without playing any combat cards. It’s like having a superpower! But, if both players roll an infinity, the combat is canceled and both players go back to their respective homes. That ends the turn.
These rules are important to keep in mind as you navigate your way through Chaosmos. Make sure you have the right gear and roll those dice strategically to gain an advantage in combat. Good luck and may the chaos be in your favor!
When it comes to a game of Chaosmos, there are a few key steps to keep in mind to determine the winner and resolve combat. Let me break it down for you:
First, let’s talk about determining the winner. To do this, we need to calculate the final combat scores. This means adding up all the numbers on the cards involved in the combat. Once we have the totals, we compare them. The player with the higher total is declared the winner. But what if there’s a tie? Well, in that case, the combat ends immediately as a draw.
Now, let’s move on to combat resolution. The winner of the combat gets to choose between two options: taking spoils or banishing the loser. Let me explain each one:
If the winner chooses to take spoils, they get to look at the loser’s hand and take one card from it. However, there’s a catch. If this puts the winner over their hand limit, which is usually 7 cards, they must immediately give the loser a card of their choice.
On the other hand, if the winner decides to banish the loser, they send them to a planet of their choice. This has an extra consequence for the loser, as they also lose the rest of their turn if it happens to be their turn.
So, those are the steps you need to follow when determining the winner and resolving combat in Chaosmos. It’s an intense game that requires strategy and cunning. Good luck!
Why Choosing the Right Weapon Matters
Hey there! I wanted to talk to you about the importance of selecting the right weapon – a topic that is sometimes overlooked but can make a huge difference in your battles. Trust me, I’ve learned this from my own experience.
Winner Takes Envelope:
Have you ever heard of the winner takes envelope rule? It’s pretty cool! When you’re playing a game and someone loses control of a planet, the winner gets to take immediate control of it, even if it’s not their turn. Talk about a game-changer!
Native Weapons:
Now, let’s discuss native weapons. These are the weapons that belong to your alien race. Here’s the thing: when your opponent uses your alien’s native weapon against you, they are at a disadvantage. They get a -1 in combat. Pretty neat, huh?
Here’s a tip: look for a special symbol in the lower right corner of the weapon art. That symbol represents your alien and indicates which weapon they are resistant to. It’s like having a secret advantage up your sleeve!

When it comes to battles, having a native weapon can be a useful advantage. No matter how many copies of the weapon your opponent has or how powerful it is, the resistance of their side will always be reduced by 1.
Time to Play a Card
Now, let’s talk about playing a card. To do this, reveal a card from your hand and if it has an action cost, you’ll need to pay it. (Cards without a special icon are free to play). Once you’ve paid the cost, the card’s effects will be immediately resolved. After that, you can either return the card to your hand or send it to the Void if it’s a Single-Use card.
Here’s the exciting part: there are no limits to the number of cards you can play or how many times you can play each card, as long as you pay their individual costs.
Time to Trade with the Cosmic Pool (for Free!)
Hey there! I have a cool ability that I can use once per turn. If I’m on my home planet, I can make a trade with the Cosmic Pool. Basically, I can exchange one card in my hand with one card from the Cosmic Pool. Sounds pretty neat, right? Just remember, I can’t make any trades during combat. Gotta keep things fair!
Ready to End your Turn?
Once you’re done taking actions, all you gotta do is click the Chaos Clock down by one. By doing that, you’ll end your turn and it’ll be the next person’s chance to play. Simple, right?
What happens at the End of the Game?
When the Chaos Clock finally reaches zero, that’s when the fun ends! The player who has the Ovoid card in their hand becomes the winner of the game. Pretty awesome, isn’t it? But here’s a twist: if no one has the Ovoid, well, the whole universe gets destroyed and we all lose. Yep, it’s game over for everyone. So, let’s make sure we have that Ovoid card, shall we?

Attention!
Hey there! Watch out for the Temporal Displacer – it’s a sneaky tool that can shorten the game by up to 8 turns!
Battle Strategy
Choose Your Fights Wisely: Remember, you can’t stay super powerful throughout the whole game.
Sometimes, it’s smarter to let your opponent win an early battle and take a card rather than using all your Single-Use weapons right away. Saving them for later might give you a better advantage!
Keep an Eye on the Weapons: Whenever your opponents play a weapon, ask them to say its name out loud. This will help you keep track of the cards they have and motivate you to find defenses to counter their moves.
Adaptation is the Key: If you amass a collection of powerful weapons, remember that your opponents will eventually figure out ways to defend against them.
When you’re playing a game, it’s often a good idea to switch up your weapons and strategies instead of sticking with the same one the whole time. A surprise move can really change the outcome of a battle.
So I’ve Found the Ovoid, What Now?
Play it cool. If the other players start to suspect you, they’ll most likely try to pry into your hand or engage in a fight with you to see if you have the Ovoid.
Strategy for the Early Game: It’s risky to hold onto the Ovoid in the beginning, so you might want to consider placing it on a less noticeable planet. If you can, it’s a smart move to protect it with a Vault or Trap.
Create Confusion: As the game progresses, the other players will start to narrow down where the Ovoid isn’t, which will eventually lead them to where it actually is.
Imagine this: you have the Ovoid, and you want to keep it hidden from your opponents. One way to do that is by moving it around different planets or using a Hypertube to send it somewhere. The more places it goes, the harder it will be for others to find.
To ensure your victory, you need to plan your end game. As the Chaos Clock counts down to zero, you need to figure out a strategy to get the Ovoid back into your hand discreetly. You don’t want to draw any attention to yourself.
So, think ahead and plan your movement carefully. Stay at a safe distance from your enemies, but make sure you’re close enough to your hiding spot. That way, you can grab the Ovoid at the perfect moment and secure your win.