Serious Sam 3 was crowdfunded for half a million?
First time I've heard of this
as said in the twitter links I posted, Serious Sam 3's budget wasn't anywhere as low 500k: Basically, what happened is that Croteam was doing a serious millitary simulator, but it was cancelled and they recycled the assets they did that game for SS3. I haven't found any statement from Croteam about SS3's budget either.