I've got several computers playing on Darrowshire in Linux Mint 17.3, Wine 1.6.2 (latest version d/l from Software Manager), and both Intel integrated graphics and AMD graphics with the FGLRX (3.x Kernel). Note: upgrading to a 4.x kernel will break the proprietary AMD linux drivers, thus I stuck with 17.3 since 18.x no worky.
Game play and frame rate are terrific and we run the game in DX9. Yes, OpenGL is a little better but there is no hardware cursor, which totally sucks ass. My lowest powered rig is a 11.6" Asus laptop with Celeron 1.5GHz x2 CPU and 2GB DDR3 with Intel Ivy Bridge graphics with shared memory. Gets 40's FPS out in the world and in dungeons, teens in big cities (think Iron Forge on busy day), maxed out graphics except view distance. Way better than my gaming rig back in 2006.