Here is the full list of all 12 Pluto's Island Playtest achievements.
You have started the game! Thanks for supporting an indie project!
Deposit 999 souls into the Volcano!
Find the god of the Swamps!
Find the god of the Catwalks!
Find the god of the Sewers!
Find the god of the Village!
Find the god of Rizzington!
Collect all of the Battlecrab cards!
Hold over 10k coins!
Collect all of the equipment!
Reach crazy high speed!
Beat the game!