Like more than one of them
30 games close to two or more of Ultimate Zombie Defense, Team Fortress 2 and Left 4 Dead 2
Killing Floor
Much the same as Left 4 Dead 2
Loved · 95%Zombies · FPSAlso like Ultimate Zombie Defense and Team Fortress 2
Killing Floor 2
Much the same as Left 4 Dead 2
Liked · 88%Zombies · FPSAlso like Ultimate Zombie Defense and Team Fortress 2
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like Ultimate Zombie Defense
Evolve Stage 2
Team Fortress 2, but about survival, and a tenth of the hours
Mixed · 70%Class-Based · Team-BasedAlso like Left 4 Dead 2 and Ultimate Zombie Defense
Zombie Panic! Source
Left 4 Dead 2, but free to play, and more divisive
Liked · 85%Zombies · FPSAlso like Ultimate Zombie Defense and Team Fortress 2
Blood and Bacon
Left 4 Dead 2, but funny, and a fifth of the hours
Loved · 95%FPS · ShooterAlso like Ultimate Zombie Defense and Team Fortress 2
Plants vs. Zombies Garden Warfare 2: Deluxe Edition
Team Fortress 2, but PvP, and with zombies
Loved · 90%Hero Shooter · Team-BasedAlso like Ultimate Zombie Defense and Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Ultimate Zombie Defense and Team Fortress 2
Pavlov VR
Left 4 Dead 2, but in VR, and military
Liked · 88%Zombies · FPSAlso like Team Fortress 2 and Ultimate Zombie Defense
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like Ultimate Zombie Defense
Yet Another Zombie Defense
Ultimate Zombie Defense, but half the hours
Liked · 87%Zombies · Tower DefenseAlso like Left 4 Dead 2
Tom Clancy's Rainbow Six Siege
Team Fortress 2, but PvP
Liked · 82%Hero Shooter · FPSAlso like Left 4 Dead 2
Paladins
Team Fortress 2, but PvP, and a quarter of the hours
Liked · 85%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Counter-Strike 2
Team Fortress 2, but twice the hours
Liked · 86%Team-Based · CompetitiveAlso like Left 4 Dead 2
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 Team Fortress 2 and Ultimate Zombie Defense
Dirty Bomb
Team Fortress 2, but faster, and a tenth of the hours
Liked · 81%Hero Shooter · Class-BasedAlso like Left 4 Dead 2
Counter-Strike: Condition Zero
Team Fortress 2, but military, and a tenth of the hours
Loved · 92%FPS · Team-BasedAlso like Ultimate Zombie Defense and Left 4 Dead 2
Alien Swarm
Ultimate Zombie Defense, but free to play, and even better loved
Loved · 95%Top-Down Shooter · Online Co-OpAlso like Team Fortress 2 and Left 4 Dead 2
World War Z
Left 4 Dead 2, but more divisive
Liked · 82%Zombies · Online Co-OpAlso like Ultimate Zombie Defense
SAS: Zombie Assault 4
Ultimate Zombie Defense, but 2D, and twice the hours
Liked · 86%Zombies · Top-Down ShooterAlso like Left 4 Dead 2
Codename CURE
Left 4 Dead 2, but military, and a tenth of the hours
Liked · 85%Zombies · FPSAlso like Ultimate Zombie Defense and Team Fortress 2
THE FINALS
Team Fortress 2, but with destruction, and more divisive
Mixed · 78%Team-Based · FPSAlso like Left 4 Dead 2
Marvel Rivals
Team Fortress 2, but with superheroes, and a third of the hours
Mixed · 75%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Warface: Clutch
Team Fortress 2, but more divisive
Mixed · 66%Class-Based · FPSAlso like Left 4 Dead 2
FragPunk
Team Fortress 2, but sci-fi, and more divisive
Mixed · 74%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Propagation VR
Left 4 Dead 2, but in VR, and a tenth of the hours
Loved · 94%Zombies · FPSAlso like Ultimate Zombie Defense
Plants vs. Zombies: Battle for Neighborville
Ultimate Zombie Defense, but funny, and more divisive
Mixed · 71%Zombies · Tower DefenseAlso like Team Fortress 2 and 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 Ultimate Zombie Defense
Depth
Left 4 Dead 2, but underwater, and half the hours
Liked · 88%Team-Based · ShooterAlso like Ultimate Zombie Defense and Team Fortress 2
Shotgun Farmers
Team Fortress 2, but a tenth of the hours
Loved · 93%Team-Based · FPSAlso like Left 4 Dead 2 and Ultimate Zombie Defense
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.