Here is the full list of all 12 Crabling Demo achievements.
Everything has to start somewhere.
Find a hidden cave filled with history.
Destroy all future competition.
Light all torches you can find.
Find a place to light a ring of fire.
Reach the second checkpoint.
Find the perfect skating spot.
Enter a small cave and reach the top.
Fall for a very long time.
Reach the end of a big cave.
Reach the end... for now.
Uncover the prophecy about the future.