Free games like The Nightmare Cooperative
Below are 8 free-to-play Steam games similar to The Nightmare Cooperative, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Nightmare Cooperative page.
Ranked picks
- 1
Transformice
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Indie with The Nightmare Cooperative.
Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!
- 2
Card Hunter
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy with The Nightmare Cooperative.
Shuffle your cards and ready your dice - Card Hunter is a fresh new card gaming spin on classic tabletop RPGs. Battle your way through a massive campaign solo or with friends and compete with other players in ranked play and tournaments.
- 3
In Sink: A Co-Op Escape Prologue
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Indie with The Nightmare Cooperative.
Play an early version of the first level for free! Work together to solve the puzzles and escape a desert island in this multiplayer co-op adventure. Success requires more than just you and your partner thinking alike - you'll have to communicate and stay In Sink to overcome the challenges ahead.
- 4
Age of Conquest IV
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy and Indie with The Nightmare Cooperative.
Age of Conquest is a turn-based grand strategy wargame.
- 5
Fantasy Grounds VTT
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy and Indie with The Nightmare Cooperative.
Virtual tabletop experience for TTRPG groups with updated visuals and vast library support, including D&D 5E, Pathfinder, and more. Create unforgettable adventures with tools like dice, sheets, tokens, and maps. Prep less, play better with automated game mechanics.
- 6
Prismata
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy and Indie with The Nightmare Cooperative.
A perfect-information strategy game inspired by RTS, deckbuilders, and board games. Choose from three distinct technology classes and outwit your foes by snowballing your starting resources into a powerful cybernetic army. ABSOLUTELY NO PAY-TO-WIN.
- 7
Ord.
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy and Indie with The Nightmare Cooperative.
Ord. tells stories three words at a time.
- 8
HELLCARD: Prologue
Free-to-play alternative to The Nightmare Cooperative — no purchase or trial window. Shares Strategy and Indie with The Nightmare Cooperative.
HELLCARD: Prologue lets you try the main game's Singleplayer and Multiplayer modes. Descend into the paper dungeons on your own, recruit computer-controlled companions or join other gamers in fast-paced tactical card battles against the armies of darkness and the Archdemon himself!