Welcome to the "CryENGINE 3 Developers" group . The CryENGINE 3 Developers group is all about creating levels, mod, Total modifications, addon's, machinima videos, Indie games, using Sandbox3 for Crysis or using the free standalone CryENGINE 3 SDK tools.
Source: Crydev.net
Movie: Youtube.com
i never am a great fan of those point and click adventures, but this does look well made (watched the youtube movie you linked to Duruk).
i think some developers choose for this kind of gameplay because you then don't need so much animations and stuff. "just" walk npc from a to b, and then do a animation.
leon