Like more than one of them
20 games close to two or more of Hammerwatch II, Left 4 Dead 2 and 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
Far Cry 4
Garry's Mod, but open world, and half the hours
Liked · 85%FPS · SandboxAlso 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
Borderlands 3
Garry's Mod, but a looter shooter, and an action RPG
Liked · 81%FPS · Online Co-OpAlso like Hammerwatch II and Left 4 Dead 2
Zombie Panic! Source
Left 4 Dead 2, but half the hours, and more divisive
Liked · 85%Zombies · FPSAlso like Garry's Mod
Space Hulk: Deathwing - Enhanced Edition
Garry's Mod, but a tenth of the hours, and more divisive
Mixed · 72%FPS · Online Co-OpAlso like Hammerwatch II and Left 4 Dead 2
Arizona Sunshine VR Legacy
Left 4 Dead 2, but in VR, and a quarter of the hours
Mixed · 79%Zombies · SurvivalAlso like Hammerwatch II
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
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Garry's Mod
Borderlands: The Pre-Sequel
Garry's Mod, but a looter shooter, and loot-driven
Mixed · 79%FPS · ComedyAlso like Left 4 Dead 2
Resident Evil 6
Left 4 Dead 2, but split-screen
Mixed · 77%Zombies · Online Co-OpAlso like Hammerwatch II
How to Fish
Garry's Mod, but with fishing, and a tenth of the hours
Loved · 95%Physics · Online Co-OpAlso like Left 4 Dead 2
More like Hammerwatch II
3 games closest to Hammerwatch II of your picks
Torchlight II
Hammerwatch II, but loot-driven, and twice the hours
Loved · 92%Dungeon Crawler · Hack and Slash
Children of Morta
Hammerwatch II, but an action roguelike, and couch co-op
Liked · 88%Hack and Slash · Dungeon Crawler
More like Left 4 Dead 2
4 games closest to Left 4 Dead 2 of your picks
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · Survival
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival Horror
More like Garry's Mod
3 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
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.