No missable achievements (plus 22 unknown)
Sign in with Steam or Xbox to track your progress, and:
Eat 10 species
Evolve to stage 1
Discover three basic elements
Eat 50 species
Eat 100 species
Finish the tutorial
Discover a Nebula
Evolve to stage 2
Discover a JellyFish
Discover a Malaria
Discover a Glowing squid
Discover a
Discover a Skeleton
Discover a Glass squid
Evolve to stage 3
Discover a Bloodbelly
Discover a Fish
Discover a Anemone
Discover a Phantom
Unlock and finish "Squidworm" zone
Evolve to stage 4
Unlock and finish "Octury Deep" zone