Conquer the galaxy in this base defense game.
Launch energy generating ships first to make sure you have energy to build combat ships or use abilities. Each race has its own energy type that you'll need to build its ships or use its abilities.
Passive abilities get stronger the more energy you have in stock. Each race also has an ability that lets you increase the maximum energy stock size during combat.
Defeat enemy ships to gain experience of that ship's race, which can then be invested in the skills this race offers. Skills can make abilities stronger, unlock more ships or boost ship stats.