Like more than one of them
28 games close to two or more of Cepheus Protocol, Left 4 Dead 2 and Euro Truck Simulator 2
State of Decay 2
Cepheus Protocol, but co-op, and twice the hours
Liked · 83%Zombies · Post-apocalypticAlso like Left 4 Dead 2
State of Decay
Cepheus Protocol, but third-person
Liked · 85%Zombies · Post-apocalypticAlso like Left 4 Dead 2
VEIN
Cepheus Protocol, but with crafting, and co-op
Liked · 87%Zombies · Post-apocalypticAlso like Left 4 Dead 2
Project Zomboid
Cepheus Protocol, but with crafting, and four times the hours
Loved · 94%Zombies · Post-apocalypticAlso like Left 4 Dead 2
No One Survived
Cepheus Protocol, but with crafting, and co-op
Divisive · 64%Zombies · Post-apocalypticAlso like Left 4 Dead 2
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like Cepheus Protocol
Pacific Drive
Cepheus Protocol, but a driving sim, and with driving
Liked · 83%Survival · Post-apocalypticAlso like Euro Truck Simulator 2
Resident Evil Village
Cepheus Protocol, but a first-person shooter, and horror
Loved · 96%Zombies · Survival HorrorAlso like Left 4 Dead 2
Drive Beyond Horizons
Euro Truck Simulator 2, but a survival game, and a third of the hours
Mixed · 78%Driving · Automobile SimAlso like Left 4 Dead 2 and Cepheus Protocol
The Long Drive
Euro Truck Simulator 2, but a survival game, and a quarter of the hours
Liked · 88%Driving · Automobile SimAlso like Cepheus Protocol
Zombie Panic! Source
Left 4 Dead 2, but free to play, and half the hours
Liked · 85%Zombies · FPSAlso like Cepheus Protocol
Dying Light 2: Reloaded Edition
Cepheus Protocol, but an action RPG, and three times the hours
Mixed · 79%Zombies · Post-apocalypticAlso like Left 4 Dead 2
Plague Inc: Evolved
Much the same as Cepheus Protocol
Loved · 94%Zombies · Post-apocalypticAlso like Left 4 Dead 2
Lambda Wars
Cepheus Protocol, but free to play, and sci-fi
Loved · 92%RTS · ZombiesAlso like Left 4 Dead 2
World War Z
Left 4 Dead 2, but more divisive
Liked · 82%Zombies · Online Co-OpAlso like Cepheus Protocol
Resident Evil 2
Cepheus Protocol, but a third-person shooter, and full of puzzles
Loved · 97%Zombies · SurvivalAlso like Left 4 Dead 2
Outbreak Island
Cepheus Protocol, but a horror game, and half the hours
Mixed · 78%Survival · SandboxAlso like Left 4 Dead 2 and Euro Truck Simulator 2
Dead Rising 3
Cepheus Protocol, but a hack and slash game, and funny
Mixed · 77%Zombies · SurvivalAlso like Left 4 Dead 2
BLOCKADE 3D
Cepheus Protocol, but a first-person shooter, and pixel art
Divisive · 59%Zombies · BuildingAlso like Left 4 Dead 2
MISERY
Cepheus Protocol, but a horror game
Liked · 84%Post-apocalyptic · SurvivalAlso like Left 4 Dead 2
Dead Rising 2: Off the Record
Cepheus Protocol, but a hack and slash game, and third-person
Mixed · 77%Zombies · SandboxAlso like Left 4 Dead 2
How to Survive
Cepheus Protocol, but an action RPG, and couch co-op
Liked · 83%Zombies · SurvivalAlso like Left 4 Dead 2
More like Cepheus Protocol
2 games closest to Cepheus Protocol of your picks
Fallout Shelter
Cepheus Protocol, but free to play, and a colony sim
Liked · 88%Post-apocalyptic · Survival
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.