Jennestia I dont know if I would say the crystal tools problems are because its an offline game engine, but I do know it was origanally designed for PS3 which would be why FFXIII looks and performs so well, however no games have been released for PC using crystal tools so that could be the problem, just adapting the engine to PC, I know programming for PS3 and PC are completly differant.

I do agree that the problem is adapting the game to either PC or MMOs