Games like Purple Saturn Day
Games like Purple Saturn Day include Half-Life 2, Synthwave Burnout, Black Mesa, Half-Life, and AMID EVIL. We matched them by the tags players give Purple Saturn Day on Steam (Sports, Action, Sci-fi, Retro, and Surreal): closest matches first, and among equally close ones the better-known games.

Half-Life 2
Shared: Action · Sci-fi

Synthwave Burnout
Shared: Action · Sports · Colorful

Black Mesa
Shared: Action · Sci-fi

Half-Life
Shared: Sci-fi · Action · Retro

AMID EVIL
Shared: Sci-fi · Surreal · Action

Steep™
Shared: Sports · Action

Hotline Miami
Shared: Action · Retro · Surreal

Half-Life: Blue Shift
Shared: Action · Sci-fi · Retro

Half-Life: Opposing Force
Shared: Action · Sci-fi · Retro

Skate Story
Shared: Action · Sports · Surreal

Descenders
Shared: Sports · Action

PRAGMATA
Shared: Action · Sci-fi

STAR WARS Jedi: Survivor™
Shared: Action · Sci-fi

HELLDIVERS™ 2
Shared: Action · Sci-fi

Epigenesis
Shared: Sports · Action · Sci-fi

River City Super Sports Challenge ~All Stars Special~
Shared: Sports · Action · Retro

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Sci-fi

Warhammer 40,000: Space Marine 2
Shared: Action · Sci-fi

DOOM + DOOM II
Shared: Action · Retro · Sci-fi

Warhammer 40,000: Boltgun
Shared: Retro · Action · Sci-fi

INDUSTRIA
Shared: Action · Sci-fi · Surreal

Warhammer 40,000: Space Marine - Anniversary Edition
Shared: Action · Sci-fi

Rocket League®
Shared: Sports · Action

Sonic Mania
Shared: Retro · Action · Colorful