Like more than one of them
30 games close to two or more of Half dead, Red Dead Redemption 2 and Left 4 Dead 2
SCP: Secret Laboratory
Half dead, but free to play, and a first-person shooter
Loved · 91%Survival · HorrorAlso like Left 4 Dead 2
Fallout: New Vegas
Red Dead Redemption 2, but an action RPG, and single-player
Loved · 96%Western · Open worldAlso like Half dead and Left 4 Dead 2
Resident Evil
Half dead, but single-player, and ten times the hours
Loved · 92%Survival · Survival HorrorAlso like Left 4 Dead 2
Tom Clancy's Ghost Recon Wildlands
Red Dead Redemption 2, but a stealth game, and co-op
Mixed · 78%Open world · Third-Person ShooterAlso like Half dead and Left 4 Dead 2
The Evil Within 2
Half dead, but a third-person shooter, and 11 times the hours
Loved · 92%Horror · Survival HorrorAlso like Left 4 Dead 2
DEVOUR
Half dead, but psychological horror, and four times the hours
Loved · 90%Survival · HorrorAlso like Left 4 Dead 2
State of Decay 2
Left 4 Dead 2, but a base builder, and open world
Liked · 83%Zombies · SurvivalAlso like Half dead
Dying Light
Left 4 Dead 2, but with parkour, and open world
Loved · 95%Zombies · Survival HorrorAlso like Half dead
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like Half dead
Propagation VR
Left 4 Dead 2, but in VR, and a tenth of the hours
Loved · 94%Zombies · FPSAlso like Half dead
Dead Island Riptide Definitive Edition
Half dead, but an action RPG, and five times the hours
Mixed · 71%Survival · Co-opAlso 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 Half dead
Sker Ritual
Half dead, but a first-person shooter, and three times the hours
Liked · 81%Survival · Co-opAlso like Left 4 Dead 2
Friday the 13th: The Game
Half dead, but third-person, and six times the hours
Liked · 80%Survival · HorrorAlso like Left 4 Dead 2
Subnautica 2
Half dead, but underwater, and seven times the hours
Loved · 91%Survival · HorrorAlso like Left 4 Dead 2
S.T.A.L.K.E.R.: Shadow of Chernobyl
Half dead, but solo, and nine times the hours
Loved · 95%Survival · Survival HorrorAlso like Left 4 Dead 2
Far Cry 4
Half dead, but stealthy, and 14 times the hours
Liked · 85%Survival · Co-opAlso like Left 4 Dead 2
Synergy
Half dead, but free to play, and five times the hours
Liked · 89%Co-op · SurvivalAlso like Left 4 Dead 2
RAGE
Half dead, but post-apocalyptic, and ten times the hours
Mixed · 78%Survival · Sci-fiAlso like Left 4 Dead 2
State of Decay
Left 4 Dead 2, but a base builder, and third-person
Liked · 85%Zombies · SurvivalAlso like Half dead
Call of Duty: Black Ops II
Left 4 Dead 2, but a quarter of the hours, and more divisive
Liked · 86%FPS · Team-BasedAlso like Half dead
The Evil Within
Half dead, but a third-person shooter, and 11 times the hours
Liked · 85%Survival · HorrorAlso like Left 4 Dead 2
Far Cry 3
Half dead, but a first-person shooter, and 12 times the hours
Liked · 88%Survival · Co-opAlso like 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 Half dead
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.