Here is the full list of all 25 RINGOGNIR 2 achievements.
Finish level 1
Finish level 2
Finish level 3
Finish level 4
Finish level 5
Finish level 6
Finish level 7
Finish level 8
Finish level 9
Finish level 10
Finish level 11
Finish level 12
Finish level 13
Finish level 14
Finish level 15
Finish level 16
Finish level 17
Finish level 18
Finish level 19
Finish level 20
Finish level 21
Finish level 22
Finish level 23
Finish level 24
Finish level 25