Time Consuming: Not really difficult, just require 'grinding' or other repetitive activities.Variable: These Achievements pretty much rely on luck - as such, they do not fit into any difficulty category.The exceptions from this are, obviously, achievements that require completing a game. That is, you must get the achievement BEFORE beating all your opponents. It seems to be impossible to get most achievements after having already won the game. These are the Achievements thus far and their descriptions, plus tips on how to complete them and their difficulty. Some of these are fairly simple to pull off, while others may test your strategic resolve and possibly result in keyboard flight. Sins of a Solar Empire has numerous achievements that one can acquire as they play the game.