Here is the full list of all 19 The Renegades of Orion 2.0 achievements.
Kill boss Saiph
Kill fist boss Alnilam
Kill boss Bellatrix
Win the Scenario 7
Defeat boss Epsilon
Win the scenario 8
Defeat boss Betelgeuse
Win the scenario 9
Finish the game
Kill secret boss Mintaka
Begin Apocalypse battle
Finish the dimension to dark.
Finish the Apocalypse dimension doom
Kill boss Eridanus
Breaking the new journey
Kill boss Ckner
I expected to be more difficult
Chen potal
Ckner revenge