Put the installer on a USB stick and sell it.
I assume you’ve never gone back to the electronics store where you bought your dishwasher and expected to sell your used dishwasher there.
But that’s against the User Agreement with GOG. You don’t have that right, DRM or not.
GOG are not selling you something you own, just like the rest of the gaming platforms. They just give you the right to download and keep DRM-free installers (for the most part) for games you license purchase.
I like GOG, don’t get me wrong, but you don’t own anything you buy from them, you just possess. Ownership means you have control over that possession too which is only really true of a minuscule fraction of FOSS games that are licensed with MIT-0, 0BSD, Unlicense, CC0 or some other public domain license (which doesn’t include GPL, MIT, Apache licenses).
Put the installer on a USB stick and sell it. I assume you’ve never gone back to the electronics store where you bought your dishwasher and expected to sell your used dishwasher there.
But that’s against the User Agreement with GOG. You don’t have that right, DRM or not.
GOG are not selling you something you own, just like the rest of the gaming platforms. They just give you the right to download and keep DRM-free installers (for the most part) for games you license purchase.
I like GOG, don’t get me wrong, but you don’t own anything you buy from them, you just possess. Ownership means you have control over that possession too which is only really true of a minuscule fraction of FOSS games that are licensed with MIT-0, 0BSD, Unlicense, CC0 or some other public domain license (which doesn’t include GPL, MIT, Apache licenses).