Great game. Little hints to get through crazy: 1) lvl1 lasers do 40 dmg - more than its upgrades but slower. Clusters of lvl1 lasers will cost less and do more instantaneous dmg. 2) one lvl3 missile = 2 lvl2 missiles + 100 mineral. Slightly weaker missiles, but same amount and can aim different targets. 3) PAUSE when you upgrade/build to save time. 4) energy storages are awesome - good hp tank, repair stations + lasers take tons of energy, can take the place of solar stations if charged.