Sierra On-Line Inc.

- Založená:
- 1979
- Poloha:
- Fresno, California, U.S.
- Status:
- Odkoupená
- Web stránka:
- sierra.com (wiki)
- Taktéž známa jako:
- Sierra Entertainment (od roku 2002 po současnost)
Nejpopulárnější hry od Sierra On-Line na BestOldGames.net
- Caesar II (1995) — Distributor
- After Dark Games (1998) — Distributor
- 3-D Ultra Lionel TrainTown Deluxe (2000) — Distributor
- Lode Runner: The Legend Returns (1994) — Distributor
- Police Quest: In Pursuit of the Death Angel (1987) — Výrobce, Distributor
- Jones in the Fast Lane (1991) — Výrobce, Distributor
- Gabriel Knight: Sins of the Fathers (1993) — Výrobce, Distributor
- IndyCar Racing II (1996) — Distributor
- The Incredible Machine 2 (1994) — Distributor
- Aces of the Deep (1994) — Distributor
- Birthright: The Gorgon's Alliance (1996) — Distributor
- Quest for Glory II: Trial by Fire (1990) — Výrobce, Distributor
- Aces over Europe (1993) — Distributor
- Aces of the Pacific (1992) — Distributor
- The Incredible Machine (1993) — Distributor
- Leisure Suit Larry (1987) — Výrobce, Distributor
- Battle Bugs (1994) — Distributor
- Castle of Dr. Brain (1991) — Výrobce, Distributor
- Alien Legacy (1994) — Distributor
- Gobliins 2: The Prince Buffoon (1992) — Distributor
- Zeliard (1990) — Distributor
- Goblins 3 (1993) — Distributor
- Mixed-Up Mother Goose (1991) — Výrobce, Distributor
- Red Baron (1990) — Distributor
- Police Quest 2: The Vengeance (1988) — Výrobce, Distributor
- Leisure Suit Larry 6: Shape Up or Slip Out! (1993) — Výrobce, Distributor