GearBlocks

GearBlocks

Early access since Nov 2023

Explore a world of creative building, interactive machines, and gears - lots of gears. Build all things mechanical: cars, trucks, cranes, tanks, gearboxes, engines, clocks, anything you can think of. Test your creations to destruction in challenging scenarios, and share them in the workshop!

90% positive · 788 reviews
Not yet
In early access, still in active development
High confidence
Active Development
Not yet
In early access, still in active development
High confidence
Active Development

Where to buy

Steam $14.99
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Evaluation

GearBlocks is a solo-developed mechanical sandbox game currently in Steam Early Access, where it has been since its November 9, 2023 launch. The developer (SmashHammer Games) has maintained a consistent and productive update cadence throughout the Early Access period. Major content milestones include: combustion engines (August 10, 2024); new parts including ratchets and angle limiters (November 23, 2024); the first stage of a full logic system — switches, sensors, controls, and logic modules (September 29, 2025); expanded logic parts, new sensors (inertial, GPS), and a 64-bit build (December 8, 2025); and a feature patch adding explosives, mines, damage recovery, new gizmo parts, and more on August 20, 2026. The September 2025 post outlined a three-stage logic plan: Stage 1 (physical parts and links) was shipped in that update, Stage 2 (a node graph micro-controller) and Stage 3 (a Lua programmable computer module) were described as future possibilities pending demand. Subsequent updates have added Lua scripting capabilities, partially addressing the Stage 3 vision. The developer continues to hint at further ideas within update posts themselves — the August 2026 update lists potential additional explosive types and invites player feedback. The most recent developer communication was on August 20, 2026 — just one week before today's assessment date — delivering a substantial feature patch. There is no indication that development is concluding; the developer has not announced a 1.0 release date or declared any content complete.
Evidence
Feature patch 0.8.9727 shipped with explosives and mines, damage recovery, new Freeze Up gizmo part, additional part behaviour tweakables, and Lua scripting improvements. Developer lists further explosive types as future ideas and invites feedback.
news post · Aug 20, 2026 source development ongoing
high
Feature patch 0.7.9470 adding new logic parts (keypads, joypad, PID controller, pulse generator, inertial and GPS sensors), implicit type conversion, loop-back links, and a 64-bit Windows build.
news post · Dec 8, 2025 source development ongoing
high

Media

Details

Publisher
SmashHammer Games
Achievements
—
Platform
Windows, Linux
Controller
partial support
Steam Deck
Unsupported
Players
Single-player

About this game

GearBlocks is an open ended sandbox game for mechanically minded builders.



You can build a car with rack and pinion steering and a working drive-train with a differential gear. Or you could make a run-and-jump parkour course with motorised bouncy platforms, or an unstoppable walking mechanical elephant. The only limit is your imagination...and physics.

Create

Build or repair your creations anywhere on the map. Snap parts together, resize them, change their materials, paint them, and link their behaviours together. Choose from over 200 parts, including functional mechanical elements such as motors, gears, pulleys, joints, springs, actuators, and much more.


Interact

Turn, grab and shove your machines and watch the parts physically interact. Jump into the driver's seat and put your vehicles through their paces. Crash and smash your constructions to smithereens.


Improve

Learn how to build with the in-game tutorial scenario. Explore the example constructions to see how they’re put together. Test your builds in the included challenge scenarios.


Customise

Make rag-dolls from body parts and use them as your custom player character. Mod the game with Lua scripting to create your own custom tools, scenarios, challenges and mini-games.

Share

Share your creations with the community, try out what others have made, and maybe learn a new building trick or two along the way!


Last evaluated Aug 27, 2026
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