Apogee Software[]
1987–1996[]
|
SVG NEEDED |
3D Realms[]
1994–2015 (primary), 2015–2023 (secondary)[]
|
|
BETTER LOGO NEEDED |
2015–2023[]
2023–present[]
| Part of Beacon Interactive
3D Realms | Bytex | DIGIC Pictures | Fractured Byte | Mad Head Games | New World Interactive | Nimble Giant Entertainment | Sandbox Strategies | Slipgate Ironworks | SmartPhone Labs | Stuntworks  |