Like more than one of them
30 games close to two or more of DUCKSIDE, Team Fortress 2 and Left 4 Dead 2
No More Room in Hell
Left 4 Dead 2, but free to play, and half the hours
Loved · 90%Zombies · SurvivalAlso like DUCKSIDE
Dirty Bomb
Team Fortress 2, but PvP, and a tenth of the hours
Liked · 81%Hero Shooter · Class-BasedAlso like Left 4 Dead 2
Deadside
DUCKSIDE, but a first-person shooter, and twice the hours
Mixed · 76%Open World Survival Craft · CraftingAlso like Left 4 Dead 2
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
Plants vs. Zombies Garden Warfare 2: Deluxe Edition
Team Fortress 2, but with zombies, and PvP
Loved · 90%Hero Shooter · Team-BasedAlso like Left 4 Dead 2 and DUCKSIDE
Paladins
Team Fortress 2, but PvP, and a quarter of the hours
Liked · 85%Hero Shooter · Team-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
Rust
DUCKSIDE, but first-person, and 17 times the hours
Liked · 87%Open World Survival Craft · CraftingAlso like Team Fortress 2 and Left 4 Dead 2
Rogue Company
Team Fortress 2, but third-person, and more divisive
Mixed · 74%Hero Shooter · CompetitiveAlso like DUCKSIDE and Left 4 Dead 2
Unturned
Left 4 Dead 2, but free to play, and a survival crafting game
Loved · 91%Zombies · SurvivalAlso like DUCKSIDE
Counter-Strike 2
Team Fortress 2, but twice the hours
Liked · 86%Team-Based · CompetitiveAlso 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 a tenth of the hours, and more divisive
Mixed · 66%Class-Based · FPSAlso 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
THE FINALS
Team Fortress 2, but with destruction, and more divisive
Mixed · 78%Team-Based · FPSAlso like Left 4 Dead 2
Realm Royale Reforged
DUCKSIDE, but free to play, and a battle royale
Mixed · 76%Survival · Third-Person ShooterAlso like Team Fortress 2 and Left 4 Dead 2
Zombie Panic! Source
Left 4 Dead 2, but free to play, and half the hours
Liked · 85%Zombies · FPSAlso like Team Fortress 2 and DUCKSIDE
Blood and Bacon
Left 4 Dead 2, but funny, and a fifth of the hours
Loved · 95%FPS · ShooterAlso like Team Fortress 2
PUBG: BATTLEGROUNDS
Team Fortress 2, but about survival
Divisive · 60%FPS · ShooterAlso like Left 4 Dead 2 and DUCKSIDE
Dead Island Definitive Edition
Left 4 Dead 2, but an action RPG, and open world
Liked · 82%Zombies · SurvivalAlso like DUCKSIDE
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Team Fortress 2
SurrounDead
DUCKSIDE, but single-player, and with zombies
Loved · 91%Open World Survival Craft · Post-apocalypticAlso like Left 4 Dead 2
Green Hell
Much the same as DUCKSIDE
Liked · 85%Open World Survival Craft · SurvivalAlso like Left 4 Dead 2
How to Survive
DUCKSIDE, but an action RPG, and couch co-op
Liked · 83%Open World Survival Craft · CraftingAlso like Left 4 Dead 2
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.