Krafton, Inc., the company behind battle royale PUBG, has bought Subnautica developer Unknown Worlds for an undisclosed fee.
Unknown Worlds becomes Krafton's sixth studio, joining PUBG Studios, Striking Distance Studios, Bluehole Studio, RisingWings and Dreamotion.
Unknown Worlds began life creating the Half-Life mod, Natural Selection, which eventually spawned a commercial sequel. It went on to release underwater adventure game Subnautica and, most recently, follow-up Subnautica: Below Zero.