Like more than one of them
24 games close to two or more of Lifeless Planet, Garry's Mod and Left 4 Dead 2
Chained Together
Lifeless Planet, but co-op, and funny
Loved · 90%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Garry's Mod
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Garry's Mod
R.E.P.O.
Garry's Mod, but a survival horror game, and a quarter of the hours
Loved · 96%Physics · ComedyAlso like Left 4 Dead 2
Portal
Lifeless Planet, but first-person, and even better loved
Loved · 99%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
Content Warning
Garry's Mod, but a horror game, and a tenth of the hours
Loved · 94%Physics · Online Co-OpAlso like Left 4 Dead 2
Fallout 3 - Game of the Year Edition
Garry's Mod, but an action RPG, and open world
Liked · 82%Sandbox · FPSAlso like Lifeless Planet and Left 4 Dead 2
Inside the Backrooms
Lifeless Planet, but a survival horror game, and psychological horror
Liked · 80%Horror · MysteryAlso like Left 4 Dead 2
Zombie Panic! Source
Left 4 Dead 2, but free to play, and half the hours
Liked · 85%Zombies · FPSAlso like Garry's Mod
Counter-Strike Nexon
Left 4 Dead 2, but PvP, and more divisive
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Unturned
Left 4 Dead 2, but a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
Biped
Lifeless Planet, but co-op, and physics-driven
Liked · 85%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
Human Fall Flat
Garry's Mod, but a puzzle platformer, and a tenth of the hours
Loved · 95%Physics · SandboxAlso like Lifeless Planet
Fallout: New Vegas
Garry's Mod, but an action RPG, and single-player
Loved · 96%FPS · SandboxAlso like Left 4 Dead 2
7 Days to Die
Garry's Mod, but a base builder, and a survival crafting game
Liked · 87%Building · SandboxAlso like Left 4 Dead 2
Secret Neighbor
Lifeless Planet, but a social deduction game, and PvP
Liked · 85%Horror · MysteryAlso like Garry's Mod and Left 4 Dead 2
Space Hulk: Deathwing - Enhanced Edition
Garry's Mod, but a tenth of the hours, and more divisive
Mixed · 72%FPS · Online Co-OpAlso like Left 4 Dead 2
Ravenfield
Garry's Mod, but military, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
More like Lifeless Planet
1 games closest to Lifeless Planet of your picks
Portal 2
Lifeless Planet, but darkly funny, and twice the hours
Loved · 99%Puzzle Platformer · 3D Platformer
More like Garry's Mod
3 games closest to Garry's Mod of your picks
Space Engineers
Garry's Mod, but a survival crafting game, and with base building
Liked · 89%Building · Sandbox
More like Left 4 Dead 2
2 games closest to Left 4 Dead 2 of your picks
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival Horror
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.