3D Realms is a video game development company founded in 1987, known for its pioneering work in the first-person shooter genre. The company gained fame with the release of Duke Nukem 3D in 1996, which became a significant success and influenced many games that followed. In addition to Duke Nukem, 3D Realms has developed and published several other titles, including Shadow Warrior and Prey. The company has a reputation for its creative approach to game design and has contributed to the gaming industry through both original titles and collaborations with other developers.