Realms of Arkania: Blade of Destiny

Make a 400 ducat donation at a temple, then pray for a miracle to bring back a party member from death. You can then reload a saved game to get your money back and continue.

Save the game, then purchase a Battle Axe from a well-stocked weapon shop, such as the one in Tyldon. Equip the axe on a character and enter combat. After earning the achievement, reload the saved game file to get a refund on the axe.

Enter the "crumbling inn" (also known as the "abandoned hostel" or "tumbledown inn") optional dungeon located halfway between Daspota and Ottarje. After entering one of the last rooms on the second floor, you will get an option to interrupt a summoning. Do so to earn the achievement.

Enter a tavern and find the table with four wooden mugs on it in front of the bartender. Select the third mug from the left. Instead of showing the usual action menu, you will hear the "Die Barbaren sind frei" tavern song.

Find the magical chainmail in a cave on Runinshavn island that has the description "This Chainmail is cursed! It only protects against the undead, and causes constant physical pain for the wearer". Equip that armor and enter battle with it. The curse only lower's the chainmail's AR value to 2, and can be unequipped as desired.