Good game, but the bug where ships will just fly off the map is somewhat crippling. Particularly bad when all enemy ships act normally and all of mine will fly away for several minutes (several thousand ships). Though sometimes they all return simultaneously.
Good Game, but most of the cool tactical upgrades aren't much better than damage, and after units that are immune to EVERYTHING are introduced it's kinda like the game's saying "alright folks stop using strategy, just do some damage and call it a day". I would have much preferred to see enemies that are trickier (like the invisibles) I dono, some faster, slower, waves that have a billion little guys with a big one mixed in... Something that'd make us use strategy and think more instead of less.