2022-01-03 Update

We've pushed a few small changes today:

• Level names are now shown in the corner (most levels are just numbered for now)
  
• If it can't save, you get an error message instead of broken undo/restart behaviour.
  
• Minor structural change to very late-game secret room (changes will appear if you reset that room, even in an old save).
  
• Unintended solutions removed from level A.7 (changes will appear if you reset that room, even in an old save).
• Unintended solutions removed from optional super difficult late-game level (changes will appear if you reset that room, even in an old save).
• Fixed disappearing block in final room of branch A.
• Fixed visual bug in level B.6.
  
• Fixed visual bug in level B.15.
• Camera for Level B.12 adjusted.
  
• Links below the game now open in a new tab.