Games like Salvage Protocol
Games like Salvage Protocol include No Man's Sky, Outlast, The Forest, Outer Wilds, and Alien: Isolation. We matched them by the tags players give Salvage Protocol on Steam (Action-Adventure, Space, Atmospheric, Survival, and Destruction): closest matches first, and among equally close ones the better-known games.

No Man's Sky
Shared: Space · Survival · Exploration

Outlast
Shared: Atmospheric · Horror · Survival

The Forest
Shared: Survival · Horror · First-Person

Outer Wilds
Shared: Space · Atmospheric · Exploration

Alien: Isolation
Shared: Horror · Atmospheric · Space

Dead Space
Shared: Space · Horror · Action-Adventure

Subnautica
Shared: Survival · Horror · Exploration

Starfield
Shared: Space · Action-Adventure · Exploration

Poppy Playtime
Shared: Horror · Dark · Survival

Subnautica 2
Shared: Survival · Horror · Exploration

SOMA
Shared: Atmospheric · Horror · Dark

Sons Of The Forest
Shared: Survival · Horror · Atmospheric

Prey
Shared: Space · Atmospheric · Horror

Breathedge
Shared: Space · Survival · Atmospheric

Dead Space (2008)
Shared: Space · Horror · Atmospheric

Five Nights at Freddy's: Secret of the Mimic
Shared: Horror · Action-Adventure · First-Person

Amnesia: Rebirth
Shared: Action-Adventure · Horror · First-Person

The Long Dark
Shared: Survival · Atmospheric · Exploration

Lethal Company
Shared: Horror · First-Person · Atmospheric

The Callisto Protocol™
Shared: Space · Horror · Action-Adventure

Darkwood
Shared: Horror · Atmospheric · Dark

Bendy and the Dark Revival
Shared: Horror · First-Person · Dark

Deliver Us The Moon
Shared: Space · Atmospheric · Sci-fi

Little Nightmares II
Shared: Horror · Atmospheric · Dark

