KOSMOS: A SCI-FANTASY TTRPG
A downloadable game
KOSMOS
A Fast Sci-Fantasy RPG of Blades, Blasters, and Mystic Power
A fast sci-fantasy tabletop RPG where you survive dangerous worlds, fight alien threats, and carve your legend among the stars.
All you need is 2d6, paper, and a crew ready for trouble.
What is KOSMOS?
KOSMOS is a rules-light sci-fantasy RPG built for fast, cinematic play.
You take on the role of a capable individual — mercenary, mystic, hunter, bot, or alien - trying to survive and shape your place in a hostile cosmos.
No heavy rules. No long prep.
Just action, danger, and meaningful choices.
Core Features
- Fast, player-facing 2d6 system
- Archetype-based characters that define how you play
- Species that shape your instincts and identity
- Quick character creation (play in minutes)
- Talents that customize your playstyle
- Mystic powers fueled by willpower
- Brutal, decisive combat
- Simple Usage & Consume system for gear
- Flexible credit-based economy
- Aliens, raiders, machines, and cosmic threats
Character Creation (Fast & Flexible)
Create your character in minutes:
- Assign your Abilities
- Choose your Species
- Pick an Archetype (how you survive danger)
- Select 3 Talents
- Optionally gain Mystic Powers
- Grab your gear and go
Every character follows the same structure — simple, flexible, and fast.
What You Do in KOSMOS
- Hunt alien creatures across hostile worlds
- Explore abandoned stations and ruins
- Take dangerous contracts you’re not ready for
- Fight, negotiate, or survive against impossible odds
- Use mystic powers that bend reality
- Make choices that actually matter
Inside the Book
- Core rules
- Character creation (Species, Archetypes & Talents)
- Mystic powers
- Weapons, armour, and gear
- Credits, economy, and scarcity
- Combat & recovery
- Advancement
- Alien & enemy roster
Tone & Playstyle
KOSMOS sits between:
- pulp sci-fi adventure
- cosmic mysticism
- rules-light, OSR-style play
It’s fast, dangerous, and flexible — built to let stories emerge naturally at the table.
Who is this for?
- Players who want fast, low-prep games
- GMs who run on rulings, not rules
- Fans of sci-fi, aliens, and weird worlds
- Anyone tired of heavy, complex systems
License
Released under CC BY 4.0.
Free to use, modify, and share with credit.
Purchase
In order to download this game you must purchase it at or above the minimum price of $4.44 USD. You will get access to the following files:
Exclusive content
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Community Copy
If you're in need and can't afford a copy of the game, help yourself to a community copy of the digital zine.
Comments
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bought this on a whim at DRTRPG but wanted to say it looks really neat and i hope to run it someday! i'll buy any new material form the game for sure.
also love the very fun "notebook" style art. not every game needs to be grimdark ultra serious
anyway excited to watch for more, but in the meantime i think the Offworlders rpg has ship rules that would be immediatly compatible for people playing before offical rules hit.
Thank you so much! This genuinely made my day. The notebook-style artwork and the colourful, adventurous tone are both very intentional, so I’m really glad they connected with you.
There is definitely more KOSMOS material planned. And that’s a great suggestion regarding Offworlders, the simplicity of KOSMOS should make borrowing compatible ideas fairly painless while the official vehicle and starship material is being prepared.
I really hope you get a chance to run it someday, and I’d love to hear how your game goes!
I love this game. It is very fun.
Thanks! I really appreciate comments like this. I am still illustrating Kosmos vehicle. Will post it anytime soon!
Promising but unfortunately without any space ship or vehicle combat rules.
The rules of vehicle, mecha, and starship is done. I only need time to do the illustrations. I guess you guys have to wait for it.
So what's next for KOSMOS?