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Stack Chaos: Alien Express Demo
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.

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Features
Languages:
Interface Full Audio Subtitles
English ✔ ✔ ✔
French ✔ ✔
Italian ✔ ✔
German ✔ ✔
Spanish - Spain ✔ ✔ ✔
Simplified Chinese ✔ ✔
Korean ✔ ✔
Japanese ✔ ✔
Polish ✔ ✔
Portuguese - Portugal ✔ ✔
Russian ✔ ✔
Turkish ✔ ✔
See all 12 supported languages
Content
Includes Interactive Elements

In-game purchases, Online interactivity

Free Demo

Play Stack Chaos: Alien Express Demo

Check out the full game

 

About This Demo

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
  • 17 UFO skins — 9 unlockable, 8 premium DLC
  • A sarcastic goblin that roasts your every move
  • Global leaderboards and daily challenges
  • Stream Rooms — your viewers compete against you live
  • Atmospheric chaos: meteorites, birds
  • 12 languages, Steam Achievements, Cloud Save

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

All artistic assets, voices, sound effects and music were created with the assistance of AI tools. All content was reviewed and curated by the developer. No AI-generated content is produced during gameplay.

System Requirements

    Minimum:
    • OS: Windows 10
    • Processor: Intel Core i3 / AMD Ryzen 3 (o equivalente)
    • Memory: 4 GB RAM
    • Graphics: NVIDIA GTX 660 / AMD Radeon HD 7870 / Intel UHD 630
    • DirectX: Version 11
    • Storage: 5 GB available space
    Recommended:
    • OS: Windows 10/11
    • Processor: Intel Core i5 / AMD Ryzen 5
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GTX 1050 / AMD RX 560 o superior
    • DirectX: Version 11
    • Storage: 5 GB available space
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