John Carmack, John Romero, Tom Hall, and Adrian Carmack found id Software. The company quickly establishes itself as a leader in the development of first-person shooter games.

id Software releases Wolfenstein 3D, a groundbreaking first-person shooter that popularizes the genre. Carmack's innovative programming techniques, including raycasting, allow for fast and immersive gameplay.

id Software releases Doom, a seminal first-person shooter that further elevates the genre. Carmack's programming innovations, including binary space partitioning (BSP), enable more complex and detailed environments.

id Software releases Quake, which introduces true 3D environments and further pushes the boundaries of graphics technology. Carmack's development of the Quake engine sets a new standard for game development.

Carmack continues to innovate with Quake II and Quake III Arena, further refining graphics technology and gameplay mechanics. These titles solidify id Software's position as a leader in the first-person shooter genre.

id Software releases Doom 3, a technologically advanced first-person shooter that emphasizes horror elements. Carmack's focus on realistic lighting and shadowing creates a visually stunning and immersive experience.

ZeniMax Media, the parent company of Bethesda Softworks, acquires id Software. This acquisition provides id Software with additional resources and support for future projects.

Carmack officially leaves id Software to focus on his work at Oculus VR. While he remains a technical advisor to id Software for a short time, his departure marks the end of an era for the company.