Free games like Project Tomorrow
Below are 8 free-to-play Steam games similar to Project Tomorrow, 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 Tomorrow page.
Ranked picks
- 1
The Lab
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 2
Outpath: First Journey
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
- 3
The Riftbreaker: Prologue
Free-to-play alternative to Project Tomorrow — no purchase or trial window. Shares Strategy with Project Tomorrow.
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.
- 4
Unturned
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.
- 5
Muck
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
Muck is a survival-roguelike. Collect resources, find items & build a base to survive for as long as you can.
- 6
Supermarket Together
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action!
- 7
Fallout Shelter
Free-to-play alternative to Project Tomorrow — no purchase or trial window.
Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.
- 8
Bloons TD Battles
Free-to-play alternative to Project Tomorrow — no purchase or trial window. Shares Strategy with Project Tomorrow.
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.