An update has been released for the demo of Quantum Loop. It adds a bunch of big improvements to the game's backend and presentation. The update adds no new content, so if you've played before, there's not much reason to play again.
Also just an update for anyone who missed it: Quantum Loop is going to be at both PAX Aus in Melbourne and SXSW Sydney! If you're going to either of these events, I hope to see you there :)
There are tons of additions and tweaks in this new version and I couldn't list all of them! Here are some highlights:
Asteroids now make a rumble sound as they move past you, and there is now a rumble sound when flying at high speed.
Three save slots that are synced with Steam Cloud on a per-user basis.
More music tracks added!
All menu systems are now smoothly animated.
Various UI improvements.
Launcher allows much greater configuration of the game, including full keyboard and gamepad rebinding.
Many, many bug-fixes.
This version now uses the internal numbering system shared by the main game builds, hence why it's jumped to Beta014.