Games like Alien Slayer
Games like Alien Slayer include Skul: The Hero Slayer, Vampire Survivors, The Binding of Isaac, Hotline Miami, and UnderMine. We matched them by the tags players give Alien Slayer on Steam (Action, Shooter, Choices Matter, Perma Death, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Skul: The Hero Slayer
Shared: Action · Pixel Graphics · 2D
Vampire Survivors
Shared: Pixel Graphics · 2D · Singleplayer
The Binding of Isaac
Shared: Action · Top-Down · Indie
Hotline Miami
Shared: Action · Top-Down · Pixel Graphics
UnderMine
Shared: Action · Pixel Graphics · Singleplayer
The Binding of Isaac: Rebirth
Shared: Pixel Graphics · Singleplayer · Indie
Nuclear Throne
Shared: Action · Pixel Graphics · Action Roguelike
Enter the Gungeon
Shared: Pixel Graphics · Action · Action Roguelike
Risk of Rain (2013)
Shared: Action · Pixel Graphics · Perma Death
Broforce
Shared: Action · Pixel Graphics · 2D
Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Top-Down
Battlefield™ 2042
Shared: Shooter · Action · Singleplayer
Titanfall® 2
Shared: Shooter · Action · Singleplayer
Rogue Legacy
Shared: Action · Singleplayer · 2D
Noita
Shared: Pixel Graphics · Perma Death · 2D
Undertale
Shared: Choices Matter · Singleplayer · Pixel Graphics
Dead Cells
Shared: 2D · Pixel Graphics · Action
BlazBlue Entropy Effect
Shared: Action · 2D · Pixel Graphics
Dungreed
Shared: Action · Pixel Graphics · 2D
Dome Keeper
Shared: Action · Singleplayer · Pixel Graphics
BALL x PIT
Shared: Action · Top-Down · Pixel Graphics
Vagante
Shared: Action · Choices Matter · Pixel Graphics
Crysis Remastered
Shared: Action · Shooter · Singleplayer
Call of Duty®
Shared: Shooter · Action · Singleplayer