[6ren]

FWIW, Notch hasn't open sourced Minecraft.

Id did open source some games, but only well after the main burst of sales had dried up.

Counterpoint: reddit and HN are open sourced (are they games? they have points...)

Just some data points, not advice.

[gsaines]

We're not really open source zealots or anything, but Quake did score points in my book for being cross platform back when everything was released only for windows.

For most projects/businesses, there's always a tension between open sourcing and making money, I really hope that we're at a market intersection where it actually makes monetary sense to keep things open.