MechWarrior: Dark Age (now in its second iteration, Age of Destruction) is a tabletop wargame by WizKids based on the BattleTech universe, that uses the Clix system. The miniatures are pre-painted models of infantry squads, vehicles, and giant walking war machines known as BattleMechs. The game may be purchased in booster packs (similar to Magic: The Gathering), but there are ways of acquiring particular pieces without spending large quantities of money on packs. Trade is the most common option, followed by purchases on eBay. There are units that you can only acquire through trade or send-aways, such as the Battleforces and the Designer Series Mechs and pilots. There are several factions to collect, and many are interconnected by alliances and other relations. Many of the factions from Classic Battletech were introduced into the game and the game has several original factions as well. In keeping with the spirit of the Battletech universe, there are also many mercenary units referred to as Gunslingers.