Single-player games like Project Threshold
Below are 10 single-player Steam games similar to Project Threshold, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Project Threshold page.
Ranked picks
- 1
Inner Voice
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
A slow-burning first-person adventure where a mysterious narrator guides your choices through a dreamlike world of grief, symbols and secrets.
- 2
Still With Me
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
A psychological horror experience about returning to a place that never forgot you.
- 3
Box of Broken Nails
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
First-person psychological horror about ignorance and attempts. Protect yourself as a lone carpenter, hastily look for materials in your house to board up a door that shouldn’t exist. At any cost.
- 4
NIGHTSLINK
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
You are the Nightslink. Traverse abandoned roads under cover of night. Deliver cassette tapes in a post-apocalyptic world. An atmospheric retro-3D horror adventure.
- 5
The Strange Lights
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
You have arrived in a forest where people are rumored to disappear and strange things happen... Locals often see bright flashes and hear strange sounds...
- 6
Project Songbird
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
Project Songbird is a cinematic first-person narrative horror game set in the Appalachian forest. Take on the role of Dakota, a musician who must record their new album in a remote log cabin amidst a writer's block. Take caution, however. These woods were never empty...
- 7
EarWorm
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
You are an Earworm. You are an underworld contractor who hacks memories for a living. Dive into the memories of your victims in order to unlock the security questions to their bank account.
- 8
Master Reboot
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
Imagine a world where death is no longer final, where precious memories are saved to enjoy forever, where your soul is immortal. Master Reboot is a haunting first-person sci-fi adventure.
- 9
Taguan
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
David Lagani is an ordinary Filipino worker whose quiet life turns to dread when a mysterious figure begins breaking into homes and making people disappear. Each night feels longer, every sound closer, and all he can do is pray the footsteps don’t reach his door.
- 10
Don't Sleep (Huwag Matulog)
Single-player alternative to Project Threshold — playable solo, no multiplayer required. Shares Indie and Adventure with Project Threshold.
You’ve got one job: finish your project and don’t fall asleep. Easy... until you realize sleep isn’t the only thing trying to take you. This is a one-of-a-kind Filipino meta psychological horror game. We won’t say much more, anything else might ruin the experience. All we can say is don’t sleep.