Games

• Realms of Kaos
  Realms of Kaos
  Realms of Kaos is a hybrid text-based/graphical MUD/MMORPG that was released in 1996 by developer and “DungeonMaster” Lance Hoskins under the name Up All Night Entertainment, or UAN....
  
  , a roleplaying game
• The Ruins of Kunark
  The Ruins of Kunark
  EverQuest: The Ruins of Kunark is the first expansion to EverQuest, a massive multiplayer online role-playing game . It introduced a new land area to the game, the continent of Kunark, which had been previously unexplored...
  
  , an Everquest expansion
• The Rise of Kunark, an EverQuest II expansion

Organisations

• Rok plc, a British construction company which collapsed in 2010
• ROK, ticker symbol for Rockwell Automation
  Rockwell Automation
  Rockwell Automation is a global provider of industrial automation, power, control and information solutions. Brands in industrial automation include Allen-Bradley and Rockwell Software....
  
  
• ROK, IATA code for Rockhampton Airport
  Rockhampton Airport
  Rockhampton Airport is a major Australian regional airport that services the city of Rockhampton, with flights to the cites of Brisbane, Sydney, Gladstone, Cairns, Townsville, Mackay and Melbourne....