Free games like Unknown Darkness
Below are 10 free-to-play Steam games similar to Unknown Darkness, 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 Unknown Darkness page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Action with Unknown Darkness.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
missed messages.
Free-to-play alternative to Unknown Darkness — no purchase or trial window.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
- 3
Paper Lily - Chapter 1
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Adventure and RPG with Unknown Darkness.
Paper Lily is an RPG horror game in which you can solve puzzles in different ways. Explore a hidden world, meet strange characters, and guide Lacie as she attempts to find answers about her unusual condition.
- 4
Project Kat - Paper Lily Prologue
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Adventure and RPG with Unknown Darkness.
Project Kat is a short, unconventional RPG horror game in which there is always another way. Solve puzzles, make friends (or not), and guide Kat as she attempts to uncover the mystery behind a strange golden letter.
- 5
Saihate Station
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Adventure and RPG with Unknown Darkness.
An exploration/horror/adventure game about the codependent, love-hate relationship between two men.
- 6
Hello Neighbor Alpha 2
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Strategy and Adventure with Unknown Darkness.
Welcome to Alpha 2 of Hello Neighbor. Play against an advanced, self-learning AI in what eventually became Act 1 of Hello Neighbor - the stealth horror home invasion sim.
- 7
Die in the Dungeon: Origins
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Strategy and RPG with Unknown Darkness.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 8
The Test: Secrets of the Soul
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Adventure and RPG with Unknown Darkness.
You will answer a series of questions that will reveal things from deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to unlock "Secrets of the Soul..."
- 9
Rogue Assault
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Action and Strategy with Unknown Darkness.
A real-time strategy military game that lets you directly command your units, with no build times and impressive 3D visuals. Set in a post‑apocalyptic Europe - form alliances with other commanders, fight for resources and territory and rise in honor as a war commander.
- 10
Minion Masters
Free-to-play alternative to Unknown Darkness — no purchase or trial window. Shares Action and Strategy with Unknown Darkness.
An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!