Algodoo

unedited description from v0.409:
Hi!
Things to know:
-generators on the right constantly generate donuts based on your level.
-marbles on the left give bonuses by hitting something.
-the counter in the middle is counting your current number of donuts.
-press 'enter' to gain levels.
-simulation frequency on 1200hz, and simulation speed at 0.1.
Bugs and Notes:
-after a while, the ones and tens digits may disappear.
-the bonuses the marbles give are too much in this version.
-once the 'sprinkles' (balls) inside the donut ring in the center fall out,
you're somewhat close to hitting 1 billion.
-don't try and touch some of the objects, as it may break the game.
-no savepoints installed yet, the main goal is to get as many donuts as you can.
Updates coming soon, enjoy for now!

Concept looks interesting!