Here is the full list of all 15 Alwa's Awakening achievements.
Defeat the Crimson Guardian
Defeat Sea Monk
Defeat Vicious Keeper
Discover the potential of the magic staff
Defeat The Beholder
Rescue somone who needs your help
Finish the game in less than 120 minutes and with less than 5 deaths
Complete the game
Find the hidden tomb
Find the book of Sutter
Defeat Crimson Guardian before any other bosses
Find all the items
Defeat Vicious Keeper in less than 10 seconds
Find all the pieces of the broken tablet
Gather all the blue orbs