Here is the full list of all 13 Alteric achievements.
Complete Stage 12 without deaths
Complete Chapter 3
I found you, Thommy
Jump 4000 times
Change space 400 times
Jump 2000 times
Complete Stage 6 without deaths
Complete Chapter 2
Change space 200 times
Jump 1000 times
Die 100 times
Change space 100 times
Complete Chapter 1