A) they don’t double dip on the marketplace, developers (or publishers) get the steam tax on all items sold there.
B) maybe, but they provide unlimited nonrate capped downloads for eternity for your game, including free unlimited downloads and uploads of workshop items. Bandwidth isn’t cheap at scale, you could spend >50% of your income as a small dev on distribution, or for 30% you get everything steam provides for eternity for all your players.
A) they don’t double dip on the marketplace, developers (or publishers) get the steam tax on all items sold there.
B) maybe, but they provide unlimited nonrate capped downloads for eternity for your game, including free unlimited downloads and uploads of workshop items. Bandwidth isn’t cheap at scale, you could spend >50% of your income as a small dev on distribution, or for 30% you get everything steam provides for eternity for all your players.