So, here we are. Actually I think my idea wasn’t really ground breaking, and the game is not that much fun. However it should be good enough for a few minutes 
The magic apocalypse happened. A magic rift is tearing the world apart in ten seconds. The only way to avoid this
is to get to the magic source and repair it. But you’ve only got 10 seconds…
It’s a simple 3d “platformer”. You’ve got 10 to reach the goal (the rotating blue thingie). Picking up crystals
prolonges the time left by 5 seconds.
Control by cursor keys, Control to jump.

Anyhow, if you be able to test it, I’d be happy for feedback!
Get it from here