Thirdverse is a virtual reality (VR) gaming company focused on creating immersive experiences. They develop and publish VR games, including multiplayer sword fighting games like Swords of Gargantua and Altair Breaker, as well as the multiplayer hero shooter game X8. Thirdverse aims to create a third space in the Metaverse and is headquartered in Tokyo, Japan, with a subsidiary in San Francisco, USA.