Like more than one of them
21 games close to two or more of Papo & Yo, Garry's Mod and Left 4 Dead 2
Portal
Papo & Yo, but first-person, and funny
Loved · 99%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
Biped
Papo & Yo, but co-op, and physics-driven
Liked · 85%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso 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
Human Fall Flat
Garry's Mod, but a puzzle platformer, and a tenth of the hours
Loved · 95%Physics · SandboxAlso like Papo & Yo
Ravenfield
Garry's Mod, but single-player, and a third of the hours
Loved · 97%Sandbox · FPSAlso like Left 4 Dead 2
Counter-Strike Nexon
Left 4 Dead 2, but free to play, and PvP
Mixed · 67%Zombies · FPSAlso like Garry's Mod
Supraland
Papo & Yo, but open world, and four times the hours
Loved · 95%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Carry The Glass
Papo & Yo, but co-op, and more divisive
Mixed · 76%Puzzle Platformer · 3D PlatformerAlso like Garry's Mod
Unturned
Left 4 Dead 2, but a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Garry's Mod
LEGO Voyagers
Papo & Yo, but couch co-op, and cute
Liked · 89%3D Platformer · Puzzle PlatformerAlso like Garry's Mod
Suicide Guy
Papo & Yo, but funny, and first-person
Liked · 88%3D Platformer · Puzzle PlatformerAlso like Garry's Mod
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Garry's Mod
More like Papo & Yo
4 games closest to Papo & Yo of your picks
Portal 2
Papo & Yo, but darkly funny, and three times the hours
Loved · 99%Puzzle Platformer · 3D Platformer
Viewfinder
Papo & Yo, but first-person, and physics-driven
Loved · 95%Puzzle Platformer · 3D Platformer
It Takes Two
Papo & Yo, but split-screen, and three times the hours
Loved · 95%Puzzle Platformer · 3D Platformer
More like Garry's Mod
4 games closest to Garry's Mod of your picks
Scrap Mechanic
Garry's Mod, but a survival crafting game, and with base building
Loved · 92%Building · Physics
Fireworks Mania - An Explosive Simulator
Garry's Mod, but a hobby sim, and 3D
Loved · 97%Sandbox · Physics
Hot Dogs, Horseshoes & Hand Grenades
Garry's Mod, but in VR, and half the hours
Loved · 97%Physics · Sandbox
More like Left 4 Dead 2
1 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.