Like more than one of them
25 games close to two or more of Serious Sam Classic: The Second Encounter, Left 4 Dead 2 and Stardew Valley
GTFO
Left 4 Dead 2, but harder, and half the hours
Liked · 84%FPS · ZombiesAlso like Serious Sam Classic
Blood and Bacon
Serious Sam Classic, but horror, and co-op
Loved · 95%FPS · ShooterAlso like 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 Serious Sam Classic
DOOM
Serious Sam Classic, but faster, and twice the hours
Loved · 96%FPS · ShooterAlso like Left 4 Dead 2
SCP: Secret Laboratory
Left 4 Dead 2, but free to play
Loved · 91%FPS · Survival HorrorAlso like Serious Sam Classic
Painkiller Hell & Damnation
Serious Sam Classic, but horror, and more divisive
Mixed · 78%FPS · ShooterAlso 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 Serious Sam Classic
Resident Evil 6
Left 4 Dead 2, but split-screen, and more divisive
Mixed · 77%Zombies · Online Co-OpAlso like Serious Sam Classic
BLOCKADE 3D
Left 4 Dead 2, but pixel art, and a third of the hours
Divisive · 59%Zombies · FPSAlso like Serious Sam Classic
RAGE
Left 4 Dead 2, but open world, and sci-fi
Mixed · 78%FPS · Post-apocalypticAlso like Serious Sam Classic
Far Cry
Serious Sam Classic, but open world, and harder
Liked · 82%FPS · ShooterAlso like Left 4 Dead 2
Garry's Mod
Serious Sam Classic, but physics-driven, and eight times the hours
Loved · 97%FPS · ShooterAlso like Left 4 Dead 2
World War Z
Left 4 Dead 2, but more divisive
Liked · 82%Zombies · Online Co-OpAlso like Serious Sam Classic
Synergy
Left 4 Dead 2, but sci-fi, and a third of the hours
Liked · 89%Zombies · FPSAlso like Serious Sam Classic
Call of Duty: World at War
Left 4 Dead 2, but set in World War II
Loved · 92%Zombies · FPSAlso like Serious Sam Classic
Zombie Panic! Source
Left 4 Dead 2, but half the hours
Liked · 85%Zombies · FPSAlso like Serious Sam Classic
BLOCKPOST LEGACY
Left 4 Dead 2, but an MMO, and a fifth of the hours
Mixed · 75%FPS · ZombiesAlso like Serious Sam Classic
Blood: Fresh Supply
Serious Sam Classic, but 2.5D, and horror
Loved · 94%FPS · Old SchoolAlso like Left 4 Dead 2
Cry of Fear
Left 4 Dead 2, but a psychological horror game, and a third of the hours
Liked · 89%Zombies · Survival HorrorAlso like Serious Sam Classic
More like Serious Sam Classic: The Second Encounter
3 games closest to Serious Sam Classic: The Second Encounter of your picks
More like Left 4 Dead 2
2 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
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.