Single-player games like Protocol Five
Below are 12 single-player Steam games similar to Protocol Five, 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 Protocol Five page.
Ranked picks
- 1
The Keyless: Awakening
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
The Keyless: Awakening is a journey through a dreamlike and surreal world, witnessing bizarre, metaphorical and surreal scenes as you overcome simple challenges.
- 2
Barbotine
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
An atmospheric horror micro-game that touches on topics of anxiety, isolation, body image and obsessive habits with a surreal PSX aesthetic.
- 3
This Is Not Your House
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Indie and Adventure with Protocol Five.
Crush someone's skull, Suffer from Hypothermia, Transcend your Mortal Frame, Find all 10 Endings. GET YOUR HOUSE BACK.
- 4
The Secret Story
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
What begins as a quiet night in an old hotel soon turns into a desperate fight for survival. As midnight approaches, Serena must uncover the truth, face her fears, and decide which path to take.
- 5
HOW
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Indie and Adventure with Protocol Five.
A psychological horror game where you play as a prisoner exploring the depths of a large and horrific medical facility. You must survive the many creatures and abominations inside and find all the secrets hidden within the strange new labyrinth.
- 6
Acceptance
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
A story-driven psychological thriller about the horrific consequences of a loved one's suicide.
- 7
Hatch
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
"Hatch is a single-player, first-person horror game. You find a hatch in your room and strange things start to happen to you. You are the target of psycho killers. You have to find the truth behind the hatch and escape from the crazy world.
- 8
Gates of Despair
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Adventure with Protocol Five.
Gates of Despair is a captivating single-player survival horror game with multiple chapters. Experience randomized gameplay, creepy jumpscares and terrifying enemies. Uncover the captivating story through cutscenes and master a variety of challenges. Are you brave enough?
- 9
The Voyager
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
Journey between parallel worlds in a first-person narrative adventure, where each journey reveals an increasingly disturbing threat. Survive, explore, and discover what lies beyond the portal.
- 10
Kill The Topulus
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
Kill The Topulus, shoot with timing and skill to survive! Complete unique challenges, climb the global leaderboards and prove you are the Master of Topulus!
- 11
Edd Skeleton Game
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
Survive Edd Skeleton's "amazing" game, Mock his efforts, and watch him up the ante with scarier creatures, trickier puzzles, and surprises that will keep you on edge. Can you endure his trials and become friends... or will you just keep mocking his incompetence?
- 12
Edd Skeleton VR
Single-player alternative to Protocol Five — playable solo, no multiplayer required. Shares Action and Indie with Protocol Five.
You told Edd Skeleton that his game was a lot of fun and not boring at all, and that it was really scary... that you would never want to stop playing it and that it was the best game of all time... here's another one for VR!