Full list of all 41 AURA: Hentai Cards achievements.
The base game contains 20 achievements, and there are 4 DLC packs containing 21 achievements.
Finish the story on normal difficulty
Finish the story on hard difficulty
Finish the story on difficulty "Nightmare"
Finish the story on difficulty "El Diablo"
Visit the Ice City called San Helm
Defeat all the girls in the town of San Helm
Finish the full story of the DLC "Jelly Christmas"
Visit the techno city called KongGong
Complete all quests in the "Revenge of the Fox Spirit" DLC
Win all battles in KongGong
Finish the story of the "Revenge of the Fox Spirit" DLC and achieve a good ending
Finish the story of the "Revenge of the Fox Spirit" DLC and achieve a bad ending
Finish the entire story of the "Revenge of the Fox Spirit" DLC
Visit the Dark Forest
Complete Dryad's story arc
Spare "The Truth"
Destroy "The Truth"
Complete all quests in the "The Dark Sea" DLC
Finish the story of the "The Dark Sea" DLC and achieve the bad ending
Finish the story of the "The Dark Sea" DLC and achieve the good ending