Watch the Humble Bundles and pick up Sanctum 2 for a dollar. Problem solved. In the mean time play something else.
Or buy the game again, if you loved it that much you could probably afford to skip lunch for the day and throw another $15 to support a small developer whose games you obviously love.
Check out my YouTube Channel DariaPlays for super nerdy video reviews on classic RPGs and Adventure titles. Bonus: I don't suck! Pinky-swear.
Don't really wanna get involved in a thing about morality and money. Just wanna say that Goat Simulator is a great product - truly inspired. The devs obviously spend a lot of their lives putting some well-hidden depth into their games.
Buyer beware - indie games don't have the polish of huge gaming studios. They took a completely different approach to a buggy unfinished product and included even more glitches for the lulz. That's just brilliant.