Now you can create your own levels and upload them to Steam Workshop.
Please find detailed manual here: PtE: Level Editor Manual[docs.google.com]

To play custom level - go to Workshop, find level that you like and subscribe to it.
Restart the game to download the level. It will be available in User Levels tab.


Level Editor will be enhanced in the nearest future. Please do not hesitate to add your feedback, suggest new feature or point an issue.

Levels 31-40 are finally finished and available, also new achievement is added.