And it wasn't even a whole week, Planetary Annihilation only became available on Thurdsay. So like 2 1/2 days.
Dev wrote on Jun 16, 2013, 16:57:
At one point it was in the top 3.
You can't compare that "top sellers" tab on the store page to this weekly list, though. Even though it's not specific, these are hard figures (ranked by revenue in a set period of time), whereas with the "top sellers" thing, we have no idea whether that's by revenue or quantity or some kind of trend... It's definitely a very, very short period of time (one day or even a few hours) because of how quickly new releases can show up there.