MechWarrior: Liao Incursion expansion introduces one of the most popular houses of the MechWarrior universe to the Dark Age: House Liao. Incursion also introduces a new game mechanic - regimental abilities - to the field. Included are additional veteran ‘Mechs, new artillery, and new VTOLs. Each figure stands on a unique combat dial with all the information needed to play. Rules for the game are included in the MechWarrior: Dark Age Starter Set, and are also available for free online.