Press R at any time to reset the game!

Also, you can click on individual Nimkip portraits (in the UI, next to where you build them) to only issue commands to Nimkip types that are currently selected!  Sorry, ran real short on time and couldn't find a way to explain that mechanic!  =(

Nimkip!  WASD or arrows to move.  Left click the ground to issue a command, right click to recall your Nimkips.  Gather enough resources to fix your space ship!