Free games like 31st prototype
Below are 9 free-to-play Steam games similar to 31st prototype, 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 31st prototype page.
Ranked picks
- 1
Doki Doki Literature Club!
Free-to-play alternative to 31st prototype — no purchase or trial window.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 2
Helltaker
Free-to-play alternative to 31st prototype — no purchase or trial window. Shares Adventure with 31st prototype.
Helltaker is a short game about sharply dressed demon girls.
- 3
ENA: Dream BBQ
Free-to-play alternative to 31st prototype — no purchase or trial window. Shares Adventure with 31st prototype.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 4
The Murder of Sonic the Hedgehog
Free-to-play alternative to 31st prototype — no purchase or trial window.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 5
The Looker
Free-to-play alternative to 31st prototype — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 6
Sheepy: A Short Adventure
Free-to-play alternative to 31st prototype — no purchase or trial window. Shares Adventure with 31st prototype.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
- 7
Travellin Cats in Paris
Free-to-play alternative to 31st prototype — no purchase or trial window.
Find 100 cats hidden in Paris, France in this cute hand-drawn hidden object game by Travellin Cats - the original viral hidden cat game creator!
- 8
![UNBEATABLE [white label] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1290490/header.jpg?t=1736770503)
UNBEATABLE [white label]
Free-to-play alternative to 31st prototype — no purchase or trial window. Shares Adventure with 31st prototype.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 9
Ray of Life
Free-to-play alternative to 31st prototype — no purchase or trial window. Shares Adventure with 31st prototype.
Грустная и поучительная история о раннем детстве, его мечтах и страхах, посвящённая тем, кто рос в «нулевые», познал всю прелесть постсоветских дворов и не мог заснуть без любимой игрушки.