Apogee Software Ltd.
- Founded:
- 1987
- Location:
- Garland, Texas, U.S.
- Status:
- Changed Name
- Website:
- apogeesoftware.com (wiki)
- Also known as:
- 3D Realms Entertainment (from 1994 to present)
Company's most popular games on BestOldGames.net
- Wolfenstein 3D (1992) — Publisher
- Bio Menace (1993) — Developer, Publisher
- Death Rally (1996) — Developer
- Alien Carnage (1993) — Publisher
- Duke Nukem 2 (1993) — Developer, Publisher
- Wacky Wheels (1994) — Publisher
- Crystal Caves (1991) — Developer, Publisher
- Commander Keen 1: Marooned on Mars (1990) — Publisher
- Duke Nukem (1991) — Developer, Publisher
- Rise of the Triad: Dark War (1994) — Publisher
- Secret Agent (1992) — Developer, Publisher
- Stargunner (1996) — Developer, Publisher
- Monster Bash (1993) — Developer, Publisher
- Boppin' (1994) — Publisher
- Hocus Pocus (1994) — Developer, Publisher
- Cosmo's Cosmic Adventure (1992) — Developer, Publisher
- Major Stryker (1993) — Developer, Publisher
- Kroz (1988) — Developer, Publisher
- Commander Keen 2: The Earth Explodes (1990) — Publisher
- Commander Keen 3: Keen Must Die! (1990) — Publisher
- Commander Keen 4: Goodbye, Galaxy! (1991) — Publisher
- Commander Keen 5: The Armageddon Machine (1991) — Publisher