Here is the full list of all 21 CreaVures achievements.
Collect all the essence.
Bite the following NPCs: bird, bat, squirrel, reptile, frog, monkey
Collect 150 essence
Defeat Falcon Elm.
Collect all the motes
Collect 1250 total motes
Collect 1000 total motes
Meet Glidey.
Collect 750 total motes
Collect 100 essence
Meet Rolly.
Collect 500 total motes
Zap yourself in water.
Meet Zappy.
Defeat Goliath Trout.
Collect 250 total motes
Hit an enemy outside the field of view with Pokey.
Collect 50 essence
Collect 25 essence
Meet Pokey.
Collect 100 total motes