Steam game

Stack Chaos: Alien Express

A physics-based arcade game where you pilot a UFO dropping possessed horror objects to build impossible towers. Swing the pendulum, time the drop, pray it doesn't collapse. 400+ objects, 11 game modes, and a sarcastic goblin that roasts your every move.

$6.21 April 13, 2026

By Vorago Studios

Windows
View on Steam
Stack Chaos: Alien Express - Vorago Studios. Popular. Released April 13, 2026
Screenshot of Stack Chaos: Alien Express gameplay showing in-action mechanics Screenshot 2 of Stack Chaos: Alien Express - additional gameplay view Screenshot 3 of Stack Chaos: Alien Express - more gameplay footage Screenshot 4 of Stack Chaos: Alien Express - final gameplay screenshot

Overview

About this game

Welcome to Alien Express™ — the galaxy's worst delivery company.


You're an alien delivery driver with a tractor beam, a swinging pendulum, and exactly 5 seconds per package. Where it lands, it stays. Build the tallest tower of possessed cartoon horror objects... or watch it all come crashing down.

We drop, you pray.

The Game

Your UFO swings cargo like a pendulum. Move left, move right — the package follows with momentum and inertia. Cut the beam at the perfect moment, or the auto-drop kicks in after 5 seconds.

Drop fast = more points. Drop risky = even more points. Drop wrong = total chaos.

What's Inside

  • 400+ possessed objects with unique physics and personality
  • 11 game modes — from classic stacking to inverted pyramids
  • 36 UFO skins
  • A sarcastic goblin that roasts your every move
  • Global leaderboards and daily challenges
  • Stream Rooms — your viewers compete against you live
  • Atmospheric chaos: meteorites, storms, birds
  • 12 languages, Steam Achievements, Cloud Save

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