Here is the full list of all 46 I Wanna Maker achievements.
Die 5000 times
Clear the final boss of the campaign without losing any lives or restarting
Clear the campaign
Collect all gems in the entire campaign
Clear World 6 of the campaign
Collect all gems in World 6 of the campaign
Clear World 5 of the campaign
Collect all gems in World 5 of the campaign
Clear World 4 of the campaign
Collect all gems in World 4 of the campaign
Clear World 3 of the campaign
Collect all gems in World 3 of the campaign
Clear World 2 of the campaign
Collect all gems in World 2 of the campaign
Clear World 1 of the campaign
Collect all gems in World 1 of the campaign
Get a 100 level streak in Hardcore Roulette
Shoot a cannon out of a cannon in the editor
Get a 100 level streak in Roulette
Explore 200 levels in Explorer
Clear 10 levels in Endurance on Impossible difficulty
Explore 50 levels in Explorer
Explore 10 levels in Explorer
Beat Mr. Scribble's Quest on Impossible difficulty
Collect 100 gems
Clear 100 levels in Endurance on any difficulty
Clear a level with a clear rate of less than 15% and at least 5 ratings
Clear a level with a clear rate of less than 5% and at least 5 ratings
Place every object in the editor
Watch the entire game credits without touching the scroll bar
Upload your first level
Clear a Custom challenge
Fully clear ANY Weekly Mix playlist
Beat Mr. Scribble's Quest on any difficulty
Beat Mr. Scribble's Quest without dying on any difficulty
Collect 25 gems
Clear levels by makers from 20 different countries
Collect 5 gems
Be the first person to clear a level
Get the fastest full clear time on a level
Get the fastest clear time on a level
Clear 5 levels
Clear 25 levels
Clear 200 levels
Receive 5 likes on your level
Clear the tutorial