Free games like MAINCORE
Below are 10 free-to-play Steam games similar to MAINCORE, 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 MAINCORE page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Simulation and Massively Multiplayer with MAINCORE.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 3
Indigo Park: Chapter 1
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 4
STRAFTAT
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 5
Counter-Strike:Global Offensive
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 6
The Expendabros
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 7
The Lab
Free-to-play alternative to MAINCORE — 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!
- 8
OnlyCans: Thirst Date
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Simulation with MAINCORE.
Feel The Fizz Inside You™ with the brand new Shize™ Collection!
- 9
Destiny 2
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
Destiny 2 is an action MMO with a single evolving world that you and your friends can join anytime, anywhere, absolutely free.
- 10
Unturned
Free-to-play alternative to MAINCORE — no purchase or trial window. Shares Action with MAINCORE.
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.