Belgium-based indie studio Happy Volcano is rolling full steam ahead with its modular automation sandbox, Modulus, as it takes center stage during Steam Automation Fest (July 14–21). The devs aren’t just showing off their latest demo updates—they’re also revealing a big milestone: Modulus hits Early Access on October 22, 2025.

With over 100,000 wishlists, 42,000 demo downloads, and a 96% Very Positive rating on Steam, Modulus is already making serious waves—and it’s only getting bigger.

A Factory Sim That’s All Flow, No Friction

Modulus trades the usual stress-inducing timers and enemies of traditional factory games for something far more meditative. You’re not just slapping together blueprints—you’re actually designing the modular components that fuel your factory’s growth, all in a clean, voxel-based art style.

Whether you’re chasing Colony objectives or just vibing in Creative Mode, Modulus is all about peaceful production, creative freedom, and the sweet, satisfying hum of machines running exactly how you designed them to.

Early Access Drops October 22 — Here’s What to Expect

Steam Automation Fest is serving as the final test run before launch. Here’s a taste of what’s coming:

• The Tech Tree – Unlock new islands, upgrades, and tools with Data Shards.

• Advanced Systems – Deploy sorters, drone deliveries, logic automation, and warehouse management.

• Customization Galore – Express yourself with expanded cosmetic options and build personalization.

• Player-Led Progression – Take on weekly challenges or follow your own directive in sandbox play.

Design the Pieces. Shape the Puzzle.

In Modulus, every building block is hand-crafted—literally. You’ll be using operators like Cutters, Stampers, and Assemblers to create 3D modules that become the backbone of your sprawling, living factory. These pieces don’t just power your automation—they visibly become the structures you’re building. It’s factory sim meets voxel art, and it’s gorgeous in motion.

Key Features at a Glance:

• Build without pressure—no enemies, no failure states

• Deep logic and automation systems for hardcore factory fans

• Gorgeous voxel visuals that grow as you do

• A fully unlocked Creative Mode with infinite resources

• Weekly prompts, player-defined goals, and meditative gameplay flow

Biggest Demo Update Yet – Here’s What’s New

Happy Volcano has also rolled out a major demo update in time for Automation Fest, with a ton of additions driven directly by community feedback:

• New Systems: Oil rigs, dye mixers, and pigment-driven production

• Map Expansion: More oil and polyrock resource zones

• Tutorial Overhaul: Rebuilt from the ground up for clarity and flow

• New Operator: The Counter joins the operator lineup

• Quality-of-Life Tweaks: Easier operator rotation, resource highlighting, and foliage cleanup

• UI/UX Enhancements: Speed indicators, tracking improvements, detailed panels

• Creative Mode: Now fully unlocked and ready for wild sandbox experiments

• Visual Upgrades: Better animations, textures, and VFX across the board

You can check out the full patch notes on the game’s Steam page.

Join the Creator Program

In addition to the demo refresh and release date news, Happy Volcano is also launching a Modulus Creator Program, inviting streamers, content creators, and automation nerds alike to get early access and community support.

Modulus launches into Early Access on October 22, 2025, but you can start building today with the updated demo during Steam Automation Fest.

Want to see what peaceful production really looks like? Try the demo, wishlist the game, and get ready to build your voxel empire one module at a time.