After being on sale for less than a week, Coffee Stained Studios’ ridiculous goat simulation game has hit a major sales milestone.

The developer has announced on its blog that Goat Simulator has already sold more than 100,000 copies on iOS and Android. With a $4.99 price tag on both systems, that’s an extra half million dollars that the quirky goat sim has made the small indie studio.

Coffee Stained Studios says that while its future plans are still up in the air, it is currently focused on squashing any bugs that cause the game to crash (as with the PC version, gameplay bugs will not be addressed, and are considered part of the experience). The developer also says that it’s working on Patch 1.2 for the PC version, and that it “will be the biggest and most awesome expansion yet.”

[Source: Coffee Stained Studios via Joystiq]