We Love It's Guide to…
Build cars, aircraft, boats, and machines from parts, then test how they handle across islands and in online play.
Released 14 Nov 2014
Build Transforming Vehicles
Program Vehicle Logic
Test Cars, Boats, Planes
Unleash your creativity and craft anything from flying cars to jet-powered toilets.Fair warning: there's a learning curve. But once you've got it, the sky's the limit for your creations!While active development is paused, we focus preserving the game and keeping it accessible.
Developed by Copybugpaste · Published by Copybugpaste









Homebrew - Patent Unknown is a vehicle-building sandbox where you take the role of a designer and assemble cars, planes, boats, and other machines from parts.
Combine engines, wheels, wings, weapons, and logic components to create vehicles with features such as autopilot, stabilization, or transforming mechanisms. You can also build devices such as robotic arms.
Test your creations in a world of islands with changing weather and day-night conditions. The simulation includes land, aerodynamic, and water physics, and online multiplayer lets players take their builds into battles.
Players who enjoy the game often praise its open-ended vehicle building and the satisfaction of solving engineering challenges through experimentation. Reviews also call out logic components, physics-based testing, and shared community creations as appealing parts of the experience. Some players value the community's willingness to help, while others note that the learning curve and paused development temper the experience.
Every vehicle showcased in the screenshots is a testament to our community's ingenuity. Homebrew is crafted with passion by a small, dedicated team and while we've poured our heart and soul into this project it has its quirks.
The learning curve is steep, and there may be imperfections, but if you crave a challenge and a platform where creativity knows no bounds, Homebrew awaits.
PLEASE NOTE: while active development is currently paused due to limited resources, every purchase supports the preservation of the game. Despite the lack of recent updates, we are dedicated to keeping Homebrew Vehicle Sandbox accessible and functional.
CURRENT FEATURES
SANDBOX BUILDING
Take the reins as the master builder. With no loads of parts and customization features, the sky's the limit.
PHYSICS
In addition to land vehicle physics the game has aerodynamics and water dynamics with waves in place so that you can test your creations to the extreme.
PARTS
Whether you're into cars, planes, boats, or more – Homebrew has your back. From engines and wheels to wings and weapons, everything's at your disposal.
LOGIC PARTS
Take building to the next level and combine usual parts with logic components to build autopilot vehicles, stabilizing systems, transforming vehicles, robotic arms and more. Your imagination is the limit.
WORLD
Explore the world of Homebrew and test your creations on one of the many islands. The world has a dynamic day and night cycle, a weather system and is large enough to test any type of vehicle including boats, supersonic planes, cars and more.
MULTIPLAYER
Play online and battle with your friends in the multiplayer.
AN AWESOME COMMUNITY
Whether you seek guidance, camaraderie, or a chat, our doors are open on Steam and our DISCORD CHANNEL.
| Platforms | Windows |
|---|---|
| Age ratings |
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| Controller support | Xbox |
| Controller required | No |
| Content notices |
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| Website | Official website |