Well, we have Legend of Grimrock, i don't really see such a big market for such games right now. Legend of Grimrock being modern version of hundreds of old games with pretty much the same concept.
It's kinda bad premise for modern games, and i think that's the reason for not so great combat system in these kind of games.
If you ask me, GOG accepted too many games in last few years. They should triage even more.
RaggieRags: Anyway, both games have reviewed well. They look professional enough. Similar games are already in GOG. So what's the problem?
They were just released. Wait for the first time they will be on sale, and more bad reviews might come up. In the case of The Fall of the Dungeon Guardians, we might not know the whole story. Same developer have another game, Tennis Elbow 2013, that does not look spectacular, but still, 3 years after release, it's still $23 even if it only had around 90 reviews, so not so many buyers.