Do these in order
For any system under siege (see Siege), remove development counters from it equal to the number of non-Fighter ships the non-controlling player controls in that system.
When the last development counter is removed, the besieging player has conquered the system, and places one development counter on the system. Any stations that remain in the system change control to the player who now controls the system.
End of turn effects end. If any player’s Homeworld has been captured, the game ends.
The game ends when either:
- A player's Homeworld has been conquered.
- The last card of a Domain deck has been drawn.
When one of the above conditions happens, the game immediately ends. Each player counts their total developments. The player with the most developments wins!