Free games like WHO THE HELL OPENED THE PORTAL?!
Below are 9 free-to-play Steam games similar to WHO THE HELL OPENED THE PORTAL?!, 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 WHO THE HELL OPENED THE PORTAL?! page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie with WHO THE HELL OPENED THE PORTAL?!.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie and Simulation with WHO THE HELL OPENED THE PORTAL?!.
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 WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie and Simulation with WHO THE HELL OPENED THE PORTAL?!.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 4
The Looker
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie with WHO THE HELL OPENED THE PORTAL?!.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 5
Sheepy: A Short Adventure
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie and Casual with WHO THE HELL OPENED THE PORTAL?!.
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.
- 6
NGU IDLE
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie and Simulation with WHO THE HELL OPENED THE PORTAL?!.
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
Grimm's Hollow
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie and RPG with WHO THE HELL OPENED THE PORTAL?!.
A spooky, freeware RPG where you search the afterlife for your brother. Reap ghosts with your scythe, explore haunted caves, and eat ghostly treats on your journey through death.
- 8
The Expendabros
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Indie with WHO THE HELL OPENED THE PORTAL?!.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 9
坍塌世界
Free-to-play alternative to WHO THE HELL OPENED THE PORTAL?! — no purchase or trial window. Shares Strategy and Indie with WHO THE HELL OPENED THE PORTAL?!.
"Collapsing World" is an innovative tower defense game blending deck-building and roguelike mechanics. Recruit unique companions, craft powerful skill decks, and tackle randomized stages. Deep strategy breaks the traditional TD mold—every run is a fresh challenge!