Thanks

Steam has been an... interesting experience so far. So very different from the Asset Store... It's all very automated now and I haven't had to deal with anyone from Valve yet. Quite pleasant, actually -- for a cave-dwelling dev such as myself anyway.

First week -- and first 3 days in particular -- were the ones where most of the sales happened, and shortly after it has trailed out. 2 weeks after early access release it's now down to a trickle income-wise.
Asset Store income has always been very even. After the first month's sales going up gradually week over week, income has been pretty steady, fluctuating by maybe 25% per week at most, and on average staying within the same amount month to month. Steam -- well, I get the impression that everyone is just waiting for sales. No one buys games at full price anymore unless it was just released. Seems like Steam's frequent sales spoiled the landscape.