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Homebrew - Patent Unknown on Steam

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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.

Homebrew - Patent Unknown is a automobile sim, driving and racing game developed and published by Copybugpaste.
Released on November 14th 2014 is available only on Windows.

It has received 830 reviews of which 589 were positive and 241 were negative resulting in a rating of 6.8 out of 10. 😐

The game is currently priced at 14.79€ on Steam, but you can find it for 0.88€ on G2A.


The Steam community has classified Homebrew - Patent Unknown into these genres:


Here is the detailed breakdown of supported languages for Homebrew - Patent Unknown:

UI Subtitle Audio
English

Media & Screenshots

Get an in-depth look at Homebrew - Patent Unknown through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • Requires a 64-bit processor and operating system
  • OS *: Microsoft Windows 7 (latest SP) 64-bit
  • Processor: Intel i5 @ 3.0 GHz or higher (or AMD equivalent)
  • Memory: 4 GB RAM
  • Graphics: Nvidia Geforce GTX 550 (1GB) or better
  • DirectX: Version 9.0c
  • Network: Broadband Internet connection
  • Storage: 4 GB available space
  • Sound Card: DirectX 9.0c compatible sound card
  • Additional Notes: We recommend a stable connection for multiplayer.

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

102 hours played
Sept. 2026
While it's sad the devs haven't been able to put out an update to this in so long, it still hits a spot other vehicle building games just haven't been able to hit for me. If you're happy to accept it as it is rather than expecting a super polished experience (which is a rare occurrence with this kind of game to begin with) I'd definitely still recommend it. Personally, I think the main area it suffers is that they put out an overhaul to the vehicle building right before development stopped, not giving much time for the new system to be refined. It would've been nice if the old version was made available through Steam once they realised they weren't going to be able to work on the new system.
5 hours played
Sept. 2026
I have a good joke for you guys. What's more irritating than an abandoned open-world engineering game?
244 hours played
Aug. 2026
very cool, god building system and logic stuff, works well on my laptop even if it stops responding sometimes in the builder
139 hours played
Dec. 2025
Really sucks the devs abandoned this game, I found it really fun, never got into making engines and parts themselves, mainly downloaded custom ones from the site and just framing vehicles and slapping parts on for fun, so much potential this game had. :( (still runs and you can build things but doesn't look like its getting another update.) rating thumbs up bc I enjoyed my time on it

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Frequently Asked Questions

Homebrew - Patent Unknown is currently priced at 14.79€ on Steam.

No, Homebrew - Patent Unknown is currently not on sale. You can purchase it for 14.79€ on Steam.

Yes, Homebrew - Patent Unknown received 589 positive votes out of a total of 830 achieving a rating of 6.82.
😐

Homebrew - Patent Unknown was developed and published by Copybugpaste.

Yes, Homebrew - Patent Unknown is playable and fully supported on Windows.

No, Homebrew - Patent Unknown is not playable on MacOS.

No, Homebrew - Patent Unknown is not playable on Linux.

This information about Homebrew - Patent Unknown is not available yet.

This information about Homebrew - Patent Unknown is not available yet.

No, Homebrew - Patent Unknown does not support VR.

Homebrew - Patent Unknown offers both single-player and multi-player modes.

Homebrew - Patent Unknown offers both Co-op and PvP modes.

No, Homebrew - Patent Unknown does not currently offer any DLC.

No, Homebrew - Patent Unknown does not support mods via Steam Workshop.

No, Homebrew - Patent Unknown does not support Steam Remote Play.

Yes, Homebrew - Patent Unknown is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Homebrew - Patent Unknown.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 12 October 2026 16:57 UTC
SteamSpy data 23 October 2026 23:23 UTC
Steam price 28 October 2026 04:01 UTC
Steam reviews 20 October 2026 18:02 UTC

If you'd like to dive deeper into the details about Homebrew - Patent Unknown, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Homebrew - Patent Unknown
  • SteamCharts - Analysis of Homebrew - Patent Unknown concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Homebrew - Patent Unknown compatibility
Homebrew - Patent Unknown
Rating
6.8
589
241
Game modes
Multiplayer
Features
Online players
2
Developer
Copybugpaste
Publisher
Copybugpaste
Release 14 Nov 2014
Platforms
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