The initial prototype version of Factorio was released to the public, starting its development journey.
Factorio was made available on Steam Early Access, allowing a wider audience to experience and contribute to its development.
The full version 1.0 of Factorio was officially released, marking the end of Early Access and the game's official launch.
The official Mod Portal was launched to support user-created modifications and extend the game's longevity and community involvement.