Free games like Project Thea
Below are 9 free-to-play Steam games similar to Project Thea, 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 Project Thea page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Project Thea — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Silly Linguine Cat Simulator Deluxe Online
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Simulation and RPG with Project Thea.
Silly Linguine Cat Simulator Deluxe Online is a clicker game where progression is replaced with gambling, where the goal is simply to collect the rarest silly linguine cats.
- 3
Die in the Dungeon: Origins
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy and RPG with Project Thea.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 4
The Riftbreaker: Prologue
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy with Project Thea.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 5
The Last Sovereign
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy and RPG with Project Thea.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.
- 6
DFHack - Dwarf Fortress Modding Engine
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy and Simulation with Project Thea.
Extensions for Dwarf Fortress, including bugfixes, interface improvements, automation agents, design blueprints, modding building blocks, and other tools.
- 7
The Life and Suffering of Sir Brante — Chapter 1&2
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy and Simulation with Project Thea.
A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!
- 8
The Test: Secrets of the Soul 2
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Simulation and RPG with Project Thea.
You will answer questions that will reveal things deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to once again unlock "Secrets of the Soul..."
- 9
Recall Rogue
Free-to-play alternative to Project Thea — no purchase or trial window. Shares Strategy and RPG with Project Thea.
The knowledge roguelite. Answer questions to hit harder, skip them to die faster. The deeper you go, the more the dungeon punishes ignorance. Bosses shrug off everything but proven knowledge. 98 decks, 7 languages, 67,000 real facts. Guilt-free gaming.