Darvond: And then there's games like
Bubsy,
Master of Orion 3, and
Empire Earth 3.
What are
those doing here?
I get that they complete a series and aren't absolute trash, but even then...
Well, you knew the answer already. At least I would miss them just for the sake for having the complete series here.
Same for e.g. the early Ultima or Might & Magic games. I personally don't feel they are worth playing anymore (other than for maybe academic interest, on where these famous RPG series started), but I am happy they are here for the sake of completeness.
I am pretty sure sometimes games will be rejected from GOG simply because GOG is swamped with new releases at that very point when someone offers a game to GOG, and/or several "similar" games are already being released. So sometimes it may be simply about bad timing and bad luck, rather than GOG staff sharply measuring games against each other.
Also if it is a game unknown to GOG, a quick test round playing the game might not reveal it as such a gem that the die hard fans consider that particular game, especially if there are not lots of positive reviews elsewhere already, or the game is quite popular elsewhere already. It isn't the first time that GOG has first rejected a game, and later apparently changed their mind and released it anyway (or then they had simply postponed its release, due to being swamped with new releases during the earlier attempt).