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