Thanks! :) It's nice to hear that people like my game. If you don't want to miss any new project i release follow my profile and join my Discord server for updates on current projects - https://discord.gg/FmX3ttu
I consider 1.4 as a "final" version, which means there won't be more major updates as I've already added everything I wanted. There will be only small additions, level redesigns and bugfixes.
There's new level editor where you can design new levels for the game share them with others . Importing levels into the game is going to be added in the next update.