If you have purchased the game, here is how the activation system works: Starsector » FAQ
Difference between product key and activation code - Microsoft Support starsector activation code
The is a single serial key required to unlock the full game from its demo state. Because the game is developed by a small independent team (Fractal Softworks) and sold outside major platforms like Steam, the activation process is unique and community-focused. 1. Getting Your Activation Code If you have purchased the game, here is