Good to see, that it still makes fun.

The demo is older than 2 years already,
the buildbuttons sometimes just show up, whenever enough resources are available.
And only the buildings have an infoscreen for the build-costs.

The attack Ai is very simple.
They just attack the main hq (I think),
And whenever they see another target, they stop and attack this,
and stay there, until the next "attack hq" command comes in.

Mostly Ai is sufficient to have Pathfinding, a good basic Ai (go to attackmode
whenever I san an enemy) and some main commands (group 1, goto enemy HQ)
Whenever the game gets more comlex, there should be more complex actions too.
(Build outpost, attack scavangers first and so on, make a hit and run-back attack)