While the full game is not free, official owners of Factorio can access this specific legacy version through these official channels: 0.16.51 - Download old versions | Factorio
: Full compatibility for Windows , Linux , and macOS . How to Download Legally Factorio 0.16.51 - Windows- Linux- Mac Free Download
Only download the game from the official Factorio website, GOG, or Steam to support the developers and ensure your PC remains safe. While the full game is not free, official