Stack Chaos: Alien Express cover art

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…

14 April 2026

Stack Chaos: Alien Express is an indie, released 14 April 2026 on PC (Microsoft Windows).

Verified Sources: IGDB , Steam

What Stack Chaos: Alien Express is

Stack Chaos: Alien Express was released in 2026. It is available on PC (Microsoft Windows) only. It runs on Unity.

The premise, in the publisher's words

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.
Description from the publisher · source

How it plays

Its themes are action. It is a single-player game with no multiplayer component. Available modes: Multiplayer and Single player.

What it launched against

Stack Chaos: Alien Express launched on 14 April 2026, within three weeks of Pragmata, Replaced, Saros and Mouse: P.I. For Hire.

Released around the same time: Pragmata, Replaced, Saros, Mouse: P.I. For Hire.

Screenshots

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Quick answers

Stack Chaos: Alien Express — frequently asked questions

When did Stack Chaos: Alien Express come out?
Stack Chaos: Alien Express was released on 14 April 2026 for PC (Microsoft Windows).

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