Gabe Newell is a games director, producer and programmer. Newell has been working with Valve Software, NVIDIA Lightspeed Studios, Gearbox Software and Turtle Rock Studios. Newell's first published game was Half-Life released in 1998. Next, Gabe Newell worked on Half-Life: Opposing Force taking on the role of director. Later, Newell also was part of the team who developed Gunman Chronicles published by Sierra On-Line for PC. Most lately, Gabe Newell worked on Dota Underlords.