DOS extender
The game runs in protected mode, using Borland C++'s Ergo DPMI / RTM DOS extender. It remained quite compatible with Microsoft Windows up to the 9x series and works very well in DOSBox and VDMSound. A playable version for Mac OS X DOSBox is also available. xBaK is a game engine recreation which allows "Betrayal at Krondor" to be played natively under the X Window System, using the original data files.