Here is the full list of all 17 Red Crow Mysteries: Legion achievements.
Talk to Legion.
Repair the car.
Finish 8 minigames without skipping.
Find and collect 7 Roses hidden throughout the game world.
Finish 5 minigames without skipping.
Watch the Credits from the Main Menu.
Find and collect 1 Rose hidden in the game world.
Finish the game without skipping any dialogs.
Find and collect all 21 Roses hidden throughout the game world.
Finish the game on Easy or Casual mode.
Read the inscription on grandpa's tomb.
Finish the game without using the Skip button during minigames.
Finish the game without using the Hint button.
Find and collect 14 Roses hidden throughout the game world.
Finish 12 minigames without skipping.
Find mother's letter.
Finish the game on Adventure mode.