Originally Posted by MulticronX
The Skill Expansion DLC's achievement is glitched - I got it after beating Skill Expansion puzzles 1, 2, 3 & 5. Never beat 4, and never even attempted anything past 5.
I beat Skill Puzzles 1-4 and it popped for me, so I guess people only need to beat any four. It's pretty dissapointing actually, the puzzles got my brain going again but now that I dont need to beat all 35 I'm not as motivated to do them lol.