I think the only things stopping people not playing cooperatively right now are shared research, shared starting points and of course friendly turrets. If you separate those and give players a 'team' option I imagine it would turn into a very different game.

The problem with a turret for cannon and shotgun shells is that those 2 things work with a collision detection, meaning you can't really put them behind a wall. A simple solution is to give turrets a 1-2 tile clearance for that. It would be good if you could build artillery cannons that have total ...

How about more turrets types to accommodate the different guns and ammo in the game? At the the moment lasers are the be end all of base defense which encourages the same strategy of mass power expansion every game with gun turrets having too little range and health to deal with spitters after not t...