Free games like 15th Prison
Below are 9 free-to-play Steam games similar to 15th 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 15th Prison page.
Ranked picks
- 1
Life is Strange - Episode 1
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Action and Adventure with 15th Prison.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 2
Ultimate Custom Night
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Action and Indie with 15th Prison.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 3
ENA: Dream BBQ
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Indie and Adventure with 15th Prison.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 4
Indigo Park: Chapter 1
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Action and Indie with 15th Prison.
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.
- 5
STRAFTAT
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Action with 15th Prison.
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.
- 6
The Looker
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Indie with 15th Prison.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 7
Counter-Strike:Global Offensive
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Action with 15th Prison.
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.).
- 8
missed messages.
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Indie and Simulation with 15th Prison.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
- 9
Wardwell House
Free-to-play alternative to 15th Prison — no purchase or trial window. Shares Adventure and Simulation with 15th Prison.
A storm washed you upon the shore of a mysterious island with a horrific past. A terrifying first-person atmospheric horror game.