The newest addition to Planet Fleet now brings vacant building space check. Whenever you move a frame of a constructable building, the spot you choose is checked if it’s available: not occupied by other buildings or units or if it’s even enough. See the newest devlog to see this feature in practice:

https://youtu.be/HBI8pnplMYo

Interested in shaping Planet Fleet together with us? How about becoming one of the contributors? See the Contributing section of PF’s Itch page: https://winnersgames.itch.io/planet-fleet to find a role for YOU!