Free games like Mega Prison
Below are 8 free-to-play Steam games similar to Mega Prison, 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 Mega Prison page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Mega Prison — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
The Murder of Sonic the Hedgehog
Free-to-play alternative to Mega Prison — no purchase or trial window.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 3
Magic Archery
Free-to-play alternative to Mega Prison — no purchase or trial window.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 4
The Lab
Free-to-play alternative to Mega Prison — 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!
- 5
SuchArt: Creative Space
Free-to-play alternative to Mega Prison — no purchase or trial window.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
- 6
Outpath: First Journey
Free-to-play alternative to Mega Prison — 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!
- 7
The Riftbreaker: Prologue
Free-to-play alternative to Mega Prison — no purchase or trial window. Shares Strategy with Mega Prison.
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.
- 8
The Last Sovereign
Free-to-play alternative to Mega Prison — no purchase or trial window. Shares Strategy with Mega Prison.
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.