Tetra Project

Tetra Project is a tactical, card-based roguelike deck-building game. You lead Cynthia through a dangerous underground research facility, exploring a randomly generated map, building card combinations and fighting alongside a team.

Card strategies

The game includes card strategies built around effects such as burning, freezing, electric attacks, crafting, support, compensation, knockback and luck. Cards designed for different strategies can also be combined to create new ones. Each run gives you random cards and events, and you can explore freely between rooms on a map that changes from game to game.

Tactical battles

During your turn, you can freely switch control between your teammates, whether or not they have already used a card. A teammate can keep acting as long as they have energy or stamina. Your team can support your chosen character, deal damage alongside them or serve other purposes depending on your strategy; additional teammates can also join during a run.

The game has multiple playable characters, each with different starting hands and equipment cards. You can use their starting cards to build different strategies. Battles also include interactive environmental objects: explosive oil barrels, fire extinguishers, bear traps that immobilize characters, obstacles, self-destruct systems and black holes. Some cards create these objects.

Mods and workshop

Tetra Project supports workshop mods, including cards and characters that mod authors can create using Excel spreadsheets to set their data. Players can also find community-created content, with close to 20,000 cards currently available when all mods are subscribed to. The game uses its own servers to support workshop maintenance.