While the game is sold for approximately on Steam to support the developer, you can legally download the full version for free through several official platforms: Frequently Asked Questions - Mindustry Wiki
Mindustry is an open-source sandbox tower defense game that is officially available as a free download for PC and Android, while being a paid title on Steam and iOS. As of April 2026, the current version is (part of the v7 and v8 development cycles), which continues to refine the hybrid factory-building and real-time strategy gameplay. Official Free Download Channels Mindustry Free Download (v140.3)