Six Sides of the World achievements

54.55%
Lunokhod
Complete one level in Selene
81.82%
STEREO
Complete all the puzzles on a level with more than one
81.82%
Infinitum
81.82%
Journey to the stars
Complete Tau Ceti
90.91%
Apolo
Unlock Selene
90.91%
Lost in Space
Unlock Rao