Here is the full list of all 15 Starlaxis Supernova Edition achievements.
Finish mission 1.8 with an advantage of at least 15 fields.
Defeat the Raptor in mission 1.4 without getting hit by it.
Unlock all ships.
Defeat at least 50 enemies in the Star Challenge mode.
Defeat at least 99 enemies in the Star Challenge mode.
Unlock all 6 commanders.
Find every single one of Sniper's hideouts in mission 3.5 at first try.
Install all upgrades.
Finish mission 3.8 without getting hit by Tilas Star Crawler.
Finish mission 4.6 without burning up any cube.
Finish mission 4.3 without getting caught by a black hole.
Finish mission 4.8.
Unlock the extra level in mission 1, 2, 3 and 4.
Unlock mission 5.
Finish ALL missions with an "A".