I have seen multiple GOG and Steam games implement DosBox in their releases, perhaps the game is DOS only or the Windows version is hard to run. Don't Qbix and Harekiet get any money when the devs include these in their current releases? Being open-source shouldn't they be paying royaly for commercial usage. How much do they usually pay, or do they break the rules and implement without permission?

I hadn't seen this discussion anywhere else.