I never said it’s not voluntary. The decision to buy the game is voluntary as well.

But it being voluntary doesn’t mean it’s not purchase. When you buy, idk, jewelry, or something to the same extent of not-survival-necessity, it’s still a purchase.

And here it is as well. It is not a pledge, it is not a donation. When you’re explicitly asked to “pledge” to get a ship, it’s a purchase.

You’re not asked to “pledge” to the jewelry shop and get a “kind owner’s gift” of your earring? You just buy it.