sometime ago when it was possible to track memory usage in game, i suspected that it was with a memory leak, i dont know exactly if it was the CE client or the steam client because people was reporting memory leak on it to. But i noticed that the memory usage increases proportionally to the playtime, starting in 5~6gb and after some hours of gameplay reaching near 16gb, i never asked to someone with 32gb if the game goes near to max too after hours of gameplay.