Steam

Substructure

Also known as Substructure, s, steam:3012600

Harness the power of automation in this factory game set on a rogue planet in the far reaches of the solar system. Dig down and explore the depths of an alien world, exploit its resources across complex production chains, and travel towards the core to uncover its deepest secrets.

Last update

5 Aug 2026

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Latest update

SecurityPublished 04 Dec 2025

Announcing Substructure: A Factory Automation Game from Dubious Design!

Hello, we’re Dubious Design! We build games for people who love the struggle. Games that make you lean in, not zone out. Games that don’t hand you answers, but demand that you find them. When you play one of our games,…

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Update history

Browse past updates and patch notes for this game.

4 updates

August 2026
Welcome to the third dev diary for Substructure. Last time, we looked at how we build up the layers of the planet visually: the terrain tiles, decals, decoratives, and generation logic that slowly turn a flat surface in…23 changesMapsWorkshop14d ago
July 2026
Dev Diary #2: Creating the Layers of SubstructureThis diary will walk you through the way we construct the various layers of the planet in Substructure. Detailing the technical approach we take to generate both the art assets that make up the world and the approach we…Event21 changesGameplayMaps10 Jul 2026
May 2026
Welcome to the first dev diary for Substructure. With this series, we want to give you a closer look at how Substructure is being built, what we are working on, and how we are thinking about the game as it develops. Fut…6 changesGameplayMaps15 May 2026

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Announcing Substructure: A Factory Automation Game from Dubious Design!

August 2026

July 2026

May 2026