What game engine is Icewind Dale II using?
Icewind Dale II is using the modified version of the BioWare Infinity Engine that was used for Icewind Dale with improvements from Baldur’s Gate II: Shadows of Amn and others developed by Black Isle Studios. The Infinity Engine is the core game engine that was developed by BioWare Corp. and used in the Baldur’s Gate series and Planescape: Torment.