KKnD, or Krush, Kill 'n' Destroy is a series of post-apocalyptic real-time strategy games by Beam Software. KKnD was released in 1997, while a sequel - KKND2: Krossfire was released in 1998. KKnD Xtreme, an expanded version of the original, featuring extra missions and enhancements, was released in 1997, and later re-released on GOG.com in 2012.
All games in the series feature a campaign for each of the different factions in each game, alongside multiplayer capabilities.