The original Conganauts puzzle test, now released publicly since development has officially stopped.  The game that IS here is still pretty good, so I'm happy to share it with everyone.

Controls:
Arrow keys/wasd to move
z: Undo
r: Reset level (does not reset your time)
Escape: exit current level and return to world map
Spacebar: select a level from the world map

If you lose focus on the game and the game doesn't register inputs anymore, press Tab a few times.  This is a bug with how itch.io handles HTML embeds and not a bug with conganauts.