Here is the full list of all 29 Eventide 2: Sorcerer's Mirror achievements worth 1,000 gamerscore.
You played the game again and made different choices
You found all glimmering mirrors hidden on the scenes
You finished the game in Expert mode
You freed Jenny
You faced consequences of your decisions
You defeated Tvardovsky
You finished all Minigames without skipping
You talked with all Imps in the game
You completed three Hidden Object Puzzles Puzzles with less than 5 misses in each one
You completed all Hidden Object Puzzles without using Hints
You found all cards with Imps
You found proof for Yanosik
You helped the Imp to assemble the necklace
You got into Tvardovsky's house
You made elixir for Yanosik
You found half of all glimmering mirrors
You found half of all cards with Imps
You got away from the prison cell
You put the Wolf to sleep
You finished three Minigames in a row without skipping
You made the first moral choice in the game
You healed wounded Yagna
You found the first glimmering mirror
You got into Tvardovsky's domain
You finished a Minigame in less than 1 minute
You found the first card with Imp
You completed an Hidden Object Puzzle without using Hints
You finished any Hidden Object Puzzle in less than half a minute
You found 3 Hidden Objects in 3 seconds