- ability to build garrisonable walls, gates, and towers
- flying vehicles/aliens
- improve ai
- transport vehicle
- flying transport
- improve the movement of the extractors
- skirmish mode with more ai/player
- ability to build outposts, away from the base
- vehicle front lights
- ability to build lookout lights for the night, which follow the closest enemy
- deformable ground
- towers/units/vehicles with flamethrowers
- underground worms in the alien faction
If I come up with other ideas I'll add them, anyway great job, the game is really well done and full of potential