Disciples III uses .dat's in-house Virtual Dream engine, which supports all modern 3D technologies, and will initially feature 3 playable races: The Empire, The Legions of the Damned, and the Noble Elves, each with its unique Unit styles and city representation that will allow city sieges, and ending with a battle for the main fortress.

The combat system will be significantly improved with the addition of new elements. Though it remains turn-based, units will move on the battlefield using an improved initiative timer-based system and more advanced interactions between statistical elements that will vary the time of attacks and the order that units take in battle.