Single-player games like Decommission Protocol
Below are 8 single-player Steam games similar to Decommission Protocol, 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 Decommission Protocol page.
Ranked picks
- 1

Static
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
A futuristic psychological thriller escape room adventure taking you through the once full apartment that you are responsible for.
- 2

Elevator Operator: System Residue
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Adventure and Simulation with Decommission Protocol.
A PSX-style horror game where you operate an elevator, check employees' IDs and information, and detect anomalies among the passengers.
- 3

Mono Tape
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
REMEMBER! You can't escape the guilt, can you? You must remember and face the truth. Are you the one to blame? There is one way to untangle your mind: collect lost tapes, repair corrupted recordings, and watch your past. But be careful who you trust. Even yourself.
- 4

Everything Is For Humanity
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
Everything is for Humanity is a story-driven, exploration and puzzle-solving based science fiction horror game which sets in a massive science facility in 2020. You will discover tons of things and find out about the blood-chilling truths with its first-person experience.
- 5

Dread Flats
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
This is a first-person Chinese horror game, players will go to a murder building, uncover the truth of the murder, find the missing people..
- 6

Amanda the Adventurer 3
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
In the thrilling conclusion of the Amanda the Adventurer trilogy, follow Riley as they uncover the ultimate secrets behind Amanda, Hameln, and mysteries that have plagued Kensdale for decades.
- 7

Bughouse
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
Play as Christopher, a kid left home alone with a terrifying STALKER on the loose! Try and survive in this 80's, PS1 inspired, Home Invasion Survival Horror game - OR DIE TRYING!
- 8

Subliminal
Single-player alternative to Decommission Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Decommission Protocol.
Subliminal is a psychological horror game inspired by the urban legend of The Backrooms. Bleeding edge lighting and rendering, handcrafted open-ended levels, light and perspective-based puzzles, nostalgic spaces, unfamiliar faces, and a rotting feeling that something is not quite right.