@Lmaydev @db0 the source is typically the least important part of any game. Games with any amount of success get copied overnight by game farms; no need for code access.
Even more: if I need to copy a game, observing it is enough, I don't need to deal with the certainly messy original code that I don't understand well. Rewriting from scratch will certainly be faster than deciphering a 3rd party codebase.
The hard part is almost never the code, it's design, gameplay, graphics, theming...