Most of the hidden achievements in KoA seem to resolve themselves through normal game play (defeat this guy, complete on hard, etc) so I imagine the answer to this one is going to be along the same lines.
According to the lists of Steam, Xbox360 and PS3 achievements these 5 are specific to Steam.
- Exterminator
- Give Her a Hand
- Keep on Rising
- Manic Pixie Dream Elf
- Message in a Bottle
What are the requirements of these 5 achievements? (I should note that Steam shows 0.1% of players have achieved them, so they are being awarded.)
Best Answer
The "general" requirements for these 5 achievements are (According to Giant Bomb's achievement list):
I'm assuming these are related to specific quests in the game, but I haven't encountered these quests yet, so I don't have more detail than this.