this game is great, but ive run into huge issues with controlling the colonists properly... i left this sitting here for 30 minutes straight with everyone set to build, but my workers still hadn't finished building one segment of electrical wiring, effectively killing everyone in my colony or forcing them to desert for lack of food/ oxygen. It seems as though they spend much more time just wandering around doing nothing than the actual jobs they are supposed to perform.
Also: even when every unit was set on guard, i found that the combat was incredibly luck based and shots fired seemed completely random/sporadic. Essentially, i think this is awesome and i had a good time, but you really need to make sure the colonists are actually within the player's control. after playing a couple of levels, i started to just leave every job on for every colonist, because otherwise i found that it took a ridiculous amount of time to accomplish anything.