Like more than one of them
23 games close to two or more of Costume Quest, Team Fortress 2 and 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
Dirty Bomb
Team Fortress 2, but faster, and a tenth of the hours
Liked · 81%Hero Shooter · Class-BasedAlso 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
Call of Duty: Black Ops III
Team Fortress 2, but with zombies, and a quarter of the hours
Liked · 85%Hero Shooter · FPSAlso like Left 4 Dead 2
Blood and Bacon
Left 4 Dead 2, but funny, and a fifth of the hours
Loved · 95%FPS · ShooterAlso like Team Fortress 2
Counter-Strike 2
Team Fortress 2, but PvP, and twice the hours
Liked · 86%Team-Based · CompetitiveAlso like Left 4 Dead 2
Plants vs. Zombies Garden Warfare 2: Deluxe Edition
Team Fortress 2, but with zombies, and a tenth of the hours
Loved · 90%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Evolve Stage 2
Team Fortress 2, but about survival, and more divisive
Mixed · 70%Class-Based · Team-BasedAlso like Left 4 Dead 2
THE FINALS
Team Fortress 2, but with destruction, and a tenth of the hours
Mixed · 78%Team-Based · FPSAlso like Left 4 Dead 2
Worms Reloaded
Costume Quest, but a turn-based tactics game, and 2D
Liked · 87%Turn-Based · Turn-Based StrategyAlso like Team Fortress 2
Battleborn
Team Fortress 2, but a MOBA, and more divisive
Divisive · 63%Hero Shooter · Class-BasedAlso 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
FragPunk
Team Fortress 2, but sci-fi, and more divisive
Mixed · 74%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Warface: Clutch
Team Fortress 2, but PvP, and a tenth of the hours
Mixed · 66%Class-Based · FPSAlso like Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Team Fortress 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
Apex Legends
Team Fortress 2, but PvP, and more divisive
Mixed · 68%Hero Shooter · Team-BasedAlso like Left 4 Dead 2
Rogue Company
Team Fortress 2, but third-person
Mixed · 74%Hero Shooter · CompetitiveAlso like Left 4 Dead 2
Counter-Strike: Condition Zero
Team Fortress 2, but military
Loved · 92%FPS · Team-BasedAlso like Left 4 Dead 2
More like Costume Quest
3 games closest to Costume Quest of your picks
Pit People
Costume Quest, but a turn-based tactics game, and co-op
Loved · 93%Turn-Based Combat · Comedy
South Park: The Stick of Truth
Costume Quest, but 2D, and even better loved
Loved · 98%Comedy · Turn-Based
Worms Revolution
Costume Quest, but a turn-based tactics game, and couch co-op
Liked · 87%Turn-Based · Turn-Based Strategy
More like Left 4 Dead 2
4 games closest to Left 4 Dead 2 of your picks
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · Survival
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · Survival
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.