Like more than one of them
21 games close to two or more of Cepheus Protocol, Garry's Mod and Euro Truck Simulator 2
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · SandboxAlso like Cepheus Protocol
Brick Rigs
Garry's Mod, but open world, and with destruction
Loved · 95%Sandbox · PhysicsAlso like Cepheus Protocol
My Summer Car
Euro Truck Simulator 2, but a survival game, and first-person
Loved · 95%Automobile Sim · DrivingAlso like Garry's Mod and Cepheus Protocol
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and a tenth of the hours
Loved · 97%Sandbox · PhysicsAlso like Cepheus Protocol
BeamNG.drive
Euro Truck Simulator 2, but physics-driven, and with destruction
Loved · 97%Driving · Automobile SimAlso like Garry's Mod
Core Keeper
Cepheus Protocol, but pixel art, and three times the hours
Loved · 93%Survival · SandboxAlso like Garry's Mod
No One Survived
Cepheus Protocol, but with crafting, and co-op
Divisive · 64%Zombies · Post-apocalypticAlso like Garry's Mod
Blockland
Garry's Mod, but a quarter of the hours, and more divisive
Mixed · 74%Building · SandboxAlso like Cepheus Protocol
Pacific Drive
Cepheus Protocol, but a driving sim, and with driving
Liked · 83%Survival · Post-apocalypticAlso like Euro Truck Simulator 2
Construction Simulator
Euro Truck Simulator 2, but co-op, and a third of the hours
Liked · 80%Transportation · DrivingAlso like Garry's Mod
Enshrouded
Cepheus Protocol, but an action RPG, and three times the hours
Liked · 86%Survival · BuildingAlso like Garry's Mod
Fun with Ragdolls: The Game
Garry's Mod, but 3D, and a tenth of the hours
Liked · 88%Physics · SandboxAlso like Cepheus Protocol
Bum Simulator
Garry's Mod, but a life sim, and single-player
Liked · 88%Sandbox · PhysicsAlso like Cepheus Protocol
TerraTech
Garry's Mod, but a survival crafting game, and with robots
Loved · 91%Building · SandboxAlso like Cepheus Protocol
Planet Coaster
Garry's Mod, but a management game, and half the hours
Loved · 91%Building · SandboxAlso like Cepheus Protocol
Lambda Wars
Cepheus Protocol, but free to play, and sci-fi
Loved · 92%RTS · ZombiesAlso like Garry's Mod
Valheim
Garry's Mod, but about survival, and with crafting
Loved · 94%Building · SandboxAlso like Cepheus Protocol
Medieval Dynasty
Cepheus Protocol, but a life sim, and a colony sim
Loved · 90%Building · SurvivalAlso like Garry's Mod
Drive Beyond Horizons
Euro Truck Simulator 2, but about survival, and a third of the hours
Mixed · 78%Driving · Automobile SimAlso like Garry's Mod and Cepheus Protocol
Ravenfield
Garry's Mod, but military, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Cepheus Protocol
Raft
Cepheus Protocol, but with crafting, and co-op
Loved · 93%Survival · BuildingAlso like Garry's Mod
More like Cepheus Protocol
7 games closest to Cepheus Protocol of your picks
Project Zomboid
Cepheus Protocol, but with crafting, and four times the hours
Loved · 94%Zombies · Post-apocalyptic
Fallout Shelter
Cepheus Protocol, but free to play, and a colony sim
Liked · 88%Post-apocalyptic · Survival
State of Decay 2
Cepheus Protocol, but co-op, and twice the hours
Liked · 83%Zombies · Post-apocalyptic
Kenshi
Cepheus Protocol, but six times the hours, and even better loved
Loved · 96%Post-apocalyptic · Sandbox
More like Garry's Mod
2 games closest to Garry's Mod of your picks
How this list is made
Each game is measured against each of your picks the way a games-like list measures it: the Steam community tags, Steam genres and IGDB themes they share, each counting for more the fewer games carry it. A game's place is how alike it is to your picks together, as a share of each pick's best match, so one alike to two of them comes before one alike to just one. It must be close to at least one of them, as close as it would have to be on that game's own list.
None of your picks is on the list, nor a second release of one, nor a game of their own series. Up to 30 games are shown. Under each name, the kinds it shares with the pick it is closest to, and how it differs from that pick.