Games like Stack Chaos: Alien Express
Games like Stack Chaos: Alien Express include Goat Simulator, Garry's Mod, Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad, Vampire Survivors, and Timberman. We matched them by the tags players give Stack Chaos: Alien Express on Steam (Casual, Physics, Arcade, Score Attack, and Comedy): closest matches first, and among equally close ones the better-known games.

Goat Simulator
Shared: Comedy · Physics · Casual

Garry's Mod
Shared: Physics · Casual · Comedy

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · Casual · 2D

Vampire Survivors
Shared: Casual · Arcade · 2D

Timberman
Shared: Casual · Arcade · 2D

Getting Over It with Bennett Foddy
Shared: Physics · Casual · Dark Humor

Peggle Deluxe
Shared: Casual · Arcade · Physics

Orbt XL
Shared: Arcade · Casual · Score Attack

Surgeon Simulator
Shared: Physics · Comedy · Dark Humor

Zup! S
Shared: Casual · Physics · 2D

Portal
Shared: Physics · Comedy · Sci-fi

People Playground
Shared: Physics · 2D · Singleplayer

World of Goo
Shared: Physics · Casual · Comedy

Gang Beasts
Shared: Physics · Casual · Action

Zup!
Shared: Casual · Physics · 2D

Superflight
Shared: Casual · Physics · Indie

Happy Wheels
Shared: Physics · Dark Humor · Casual

The WereCleaner
Shared: Casual · Dark Humor · Arcade

BEEP
Shared: Physics · Casual · 2D

PAC-MAN™ Championship Edition DX+
Shared: Arcade · Score Attack · Casual

A Dance of Fire and Ice
Shared: Arcade · Casual · 2D

Beyond Gravity
Shared: Casual · Physics · Action

Marble Mayhem: Fragile Ball
Shared: Casual · Arcade · Physics

South Park™: The Stick of Truth™
Shared: Comedy · Dark Humor · 2D