The TowerFall Dark World Expansion Add-on for TowerFall Ascension has 9 achievements.
[Dark World Expansion] Complete Cataclysm in Dark World mode
[Dark World Expansion] Complete Darkfang in Dark World mode
[Dark World Expansion] Complete Dreadwood in Dark World mode
[Dark World Expansion] Complete The Amaranth in Dark World mode
[Dark World Expansion] Complete all 48 stages in Trials mode, with a total best time of under 3:00
[Dark World Expansion] Complete the four main stages of Dark World mode on Hardcore difficulty
[Dark World Expansion] Complete the four main stages of Dark World mode on Legendary difficulty
[Dark World Expansion] Complete Cataclysm in Dark World mode, on Legendary difficulty with no continues
[Dark World Expansion] Complete Dark Gauntlet in Dark World mode, on Legendary difficulty with 2 or more curses active