Free games like Underkeep
Below are 9 free-to-play Steam games similar to Underkeep, 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 Underkeep page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie with Underkeep.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Simulation with Underkeep.
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
The Murder of Sonic the Hedgehog
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Simulation with Underkeep.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 4
Sheepy: A Short Adventure
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Casual with Underkeep.
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.
- 5
missed messages.
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Simulation with Underkeep.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
- 6
NGU IDLE
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Simulation with Underkeep.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!
- 7
Awaria
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie with Underkeep.
Awaria is a short game about working in haunted maintenance tunnels.
- 8
Travellin Cats in Paris
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Indie and Casual with Underkeep.
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!
- 9
Royal Wars: Farm TD
Free-to-play alternative to Underkeep — no purchase or trial window. Shares Strategy and Indie with Underkeep.
Royal Wars: Farm TD is a tower-defense game with strategy, luck, resourcemanagement and quick-thinking mechanics. Protect your base with Towersto defeat enemies in your path before they destroy it.