If you have completed the game, I have good news of development of eight super hard additional levels (bringing the total to 80). First two of these available in the beta test branch. They are only visible once you have completed all previous levels.
As well as these, I will be adding some achievements for some of the prized accomplishments. As usual, feedback most welcome.
The final levels and achievements
Update notes via Steam Community
View more data in app history for build 9108588
Windows
Depot 1952741
Linux
Depot 1952742
macOS
Depot 1952743
Changed depots in test branch