old Amiga game
 

i think it's about 20 years old, the story is: angels on the left, daemons on the right, turn based combat between those two armies, just a bit similar to 'dino wars', i've spent a lot of time trying to find it browsing sites with old amiga games but couldn't find it. thank you for any clues

Archon?
http://www.mobygames.com/game-group/archon-series

no, but thanx for trying

Celtic Legends?

http://hol.abime.net/2961/boxscan
http://www.mobygames.com/game/celtic-legends

Saw someone use a similar description when looking for the game on an Amiga forum.

If that isn't it, I'd appreciate you specifying if the game had Archon/Dino Wars-style action sequences. If it's an Archon clone, it should be a bit easier to narrow down.