Descent 1-3 has been removed from GOG, apparently due to "changing hands and in-flux legal agreements".

Could someone shed more light of the matter? And whom now own the rights for the old games?

I guess with Descent Underground being made gamesas wants to try and capitalize on the old franchise again Beta tester for:GSC Truck Series, Game Stock Car, Diablo 3, Descent 3 1.5 Patch, C&C Generals, Independance War 2,Starfleet Command 2,Settlers IV,Tzar,Allegiance,Starfleet Command (Alpha & Beta),MAX 2,Defiance