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CATACOMBOS playtest
by ZERO ART PROJECT
CATACOMBOS is a physics-driven roguelite combo-builder where you throw and merge cats, build absurd synergies with cards and cat hats, and crush armies of dogs in the depths of the catacombs.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Oct 7, 2026
- Planned release
- Mar 2027
- Developer
- ZERO ART PROJECT
- Platforms
- Windows, macOS
- Players
- Single-player
- Languages
- English, Russian
How to join the CATACOMBOS playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the CATACOMBOS playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
About CATACOMBOS
THROW AND MERGE CATS
Toss cats onto the battlefield and merge matching fighters to create stronger forms. Every merge can trigger abilities, summon reinforcements, and unleash devastating chain reactions.
BUILD WILD COMBOS
Cards, cats, and relics all interact with one another. A single well-timed merge can call in reinforcements, empower your entire squad, and turn an ordinary move into a catastrophe for the canine army.
EQUIP RULE-BREAKING HATS
Hats aren't just for show. They modify your cats, unlock new synergies, and help you create increasingly bizarre builds. Occasionally, they also make a cat look suspiciously fashionable.
MAKE EVERY RUN DIFFERENT
Choose your path, take risks in unpredictable events, visit shops, remove unwanted cats from your roster, and prepare to face a cast of bizarre canine bosses.
CHANGE THE WAY YOU PLAY
Unlock heroes with completely different mechanics. The Rogue, Warrior, Necromancer, Engineer, and others each use cats, cards, merges, and run resources in their own unique way.
COMPLETE THE CAT ENCYCLOPEDIA
Discover new cats, hats, items, and spells as you restore the missing pages of a mysterious ancient journal. Uncover every secret hidden within the world of CATACOMBOS!
From the game's Steam page.





