Sierra Entertianment is the division of Vivendi games famous for titles such as Crash Bandicoot, Spyro the Dragon, Empire Earth, Leisure Suit Larry, Ground Control and Tribes to name but a few.

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Half-Life
Half-Life

1. Half-Life

1 day ago Released Oct 1998 Single & Multiplayer First Person Shooter

Named Game of the Year by over 50 publications, Valve's début title blends action and adventure with award-winning technology to create a frighteningly...

SWAT 4
SWAT 4

2. SWAT 4

3 months ago Released Apr 2005 Single & Multiplayer First Person Shooter

SWAT™ 4 is the next installment of the successful tactical first person shooter franchise. SWAT™ 4 will have new features, like multi-player and co-op...

Homeworld 2
Homeworld 2

3. Homeworld 2

5 months ago Released Sep 2003 Single, Multiplayer & Co-Op Real Time Strategy

Homeworld 2 continues the epic struggle of the Hiigarans and their leader Karan S'jet. Many thought their hardships would end when they returned to Hiigara...

Aliens vs. Predator 2
Aliens vs. Predator 2

4. Aliens vs. Predator 2

3 weeks ago Released Oct 2001 Single & Multiplayer First Person Shooter

Alien vs. Predator 2 combines elements, creatures, and settings from the hit movies Aliens and Predator in three unique, interlocking stories. They unfold...

Half-Life: Opposing Force
Half-Life: Opposing Force

5. Half-Life: Opposing Force

1 month ago Released Oct 1999 Single Player First Person Shooter

Half-Life: Opposing Force is an expansion pack for Valve Software's science fiction first-person shooter video game Half-Life. The game was developed...

SWAT 4: The Stetchkov Syndicate
SWAT 4: The Stetchkov Syndicate

6. SWAT 4: The Stetchkov Syndicate

6 months ago Released Jan 2005 Single & Multiplayer First Person Shooter

Includes seven new missions featuring the fictional Stetchkov crime family. VoIP capability has been added to multiplayer games, there are seven new missions...

Starsiege: Tribes
Starsiege: Tribes

7. Starsiege: Tribes

2 months ago Released Nov 1998 Single & Multiplayer First Person Shooter

"Run, jump and fly across massive boundless battlefields as you compete against fellow warriors" is the official catchcry from this game and it could...

Homeworld
Homeworld

8. Homeworld

5 months ago Released Jul 1999 Single, Multiplayer & Co-Op Real Time Strategy

What Makes Homeworld Unique? Real-time strategy is one of the most exciting and entertaining genres of gaming. These titles bring together the thrill...

No One Lives Forever 2: A Spy in H.A.R.M's Way
No One Lives Forever 2: A Spy in H.A.R.M's Way

9. No One Lives Forever 2: A Spy in H.A.R.M's Way

3 years ago Released Sep 2002 Single & Multiplayer First Person Shooter

Cate Archer, the fearless and fashionable secret agent, returns to save the world from H.A.R.M! Armed with an assortment of super-spy weaponry and gadgets...

Evil Genius
Evil Genius

10. Evil Genius

1 year ago Released Sep 2004 Single Player Real Time Strategy

How evil are you? You're a malevolent mastermind bent on achieving global domination through the construction of the ultimate doomsday device. Build a...

Empire Earth
Empire Earth

11. Empire Earth

11 months ago Released Nov 2001 Single & Multiplayer Real Time Strategy

Spanning across the epochs of mankind's history, Empire Earth is an encompassing, deep real-time strategy game similar in style to Age of Empires. Ranging...

Half-Life: Blue Shift
Half-Life: Blue Shift

12. Half-Life: Blue Shift

1 month ago Released Jun 2001 Single Player First Person Shooter

Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which...

Lord of the Rings: War of the Ring
Lord of the Rings: War of the Ring

13. Lord of the Rings: War of the Ring

4 days ago Released Nov 2003 Single & Multiplayer Real Time Strategy

Command the Free Peoples of Middle-earth or the evil Minions of Sauron in two brilliant single-player stories. Battle up to 8 players online in intense...

Pharaoh
Pharaoh

14. Pharaoh

2 years ago Released Oct 1999 Single Player Real Time Strategy

mmerse yourself in Ancient Egypt from the age of the great pyramids to the final years of the New Kingdom. Govern all aspects of the exotic Egyptian...

Diablo Hellfire
Diablo Hellfire

15. Diablo Hellfire

6 months ago Released Nov 1997 Single & Multiplayer Hack 'n' Slash

Hellfire is the first official Diablo add-on. It is based on the original Diablo code and offers two new dungeons, a new character class, new weapons...

Team Fortress Classic
Team Fortress Classic

16. Team Fortress Classic

3 weeks ago Released Apr 1999 Multiplayer First Person Shooter

Originally a remake of the Team Fortress modification for Quake. Team Fortress Classic features over nine character classes - from Medic to Spy to Demolition...

Emperor: Rise of the Middle Kingdom
Emperor: Rise of the Middle Kingdom

17. Emperor: Rise of the Middle Kingdom

2 years ago Released Sep 2002 Single Player Real Time Strategy

As emperor, you will build housing to attract immigrants to your new city. Then the city's workers and farmers, administrators and soldiers will be yours...

Tribes 2
Tribes 2

18. Tribes 2

9 months ago Released Mar 2001 Multiplayer First Person Shooter

The sequel to the very popular Starsiege: Tribes. This online only game features more vehicles, more action, and updated technology to take you to the...

Zeus: Master of Olympus
Zeus: Master of Olympus

19. Zeus: Master of Olympus

2 years ago Released Oct 2000 Single Player Real Time Strategy

Build and rule beautiful city states to help Hercules defeat the Hydra or help Odysseus win the Trojan War. Make powerful allies, get involved in the...

Day of Defeat
Day of Defeat

20. Day of Defeat

1 year ago Released Apr 2003 Multiplayer First Person Shooter

Enlist in an intense brand of Axis vs. Allied teamplay set in the WWII European Theatre of Operations. Players assume the role of light/assault/heavy...

Counter-Strike: Condition Zero Deleted Scenes
Counter-Strike: Condition Zero Deleted Scenes

21. Counter-Strike: Condition Zero Deleted Scenes

2 months ago Released Mar 2004 Single Player First Person Shooter

Condition Zero: Deleted Scenes is a game developed by Ritual Entertainment, which acts as an expansion pack to Counter-Strike: Condition Zero. It makes...

Caesar III
Caesar III

22. Caesar III

2 years ago Released May 1999 Single Player Real Time Strategy

As a provincial governor charged with spreading the glory of Rome your mission is clear – build cities, foster trade and industry, make money. How you...

Cleopatra: Queen of the Nile
Cleopatra: Queen of the Nile

23. Cleopatra: Queen of the Nile

2 years ago Released Jul 2000 Single Player Real Time Strategy

Brings you into the latter years of the Egyptian Empire, in the era of Cleopatra, with all the monuments and architecture you would associate with her...

Arcanum: Of Steamworks and Magick Obscura
Arcanum: Of Steamworks and Magick Obscura

24. Arcanum: Of Steamworks and Magick Obscura

5 years ago Released Aug 2001 Single & Multiplayer Role Playing

Imagine a place of wonder, where magic and technology hold equal sway, and an adventurer might just as easily wield a flintlock pistol as a flaming sword...

Poseidon: Master of Atlantis
Poseidon: Master of Atlantis

25. Poseidon: Master of Atlantis

2 years ago Released Jun 2001 Single Player Real Time Strategy

Build and rule the fabled cities of the lost continent of Atlantis, establish new colonies in the ancient Americas, Africa, Europe, and Asia, and interact...

Half-Life: Decay
Half-Life: Decay

26. Half-Life: Decay

1 month ago Released Nov 2001 Multiplayer First Person Shooter

Half-Life: Decay is the the third expansion pack for the award-winning game, Half-Life. It was included as part of the PS2 version of Half-Life. Decay...

Contract J.A.C.K.
Contract J.A.C.K.

27. Contract J.A.C.K.

5 years ago Released Nov 2003 Single & Multiplayer First Person Shooter

Jack is "Just Another Contract Killer." He works for the villain Mitrij Volkov of HARM in the prequel to the No One Lives Forever series. Jack is your...

Empire Earth III
Empire Earth III

28. Empire Earth III

2 years ago Released Nov 2007 Single Player Real Time Strategy

Create a lasting empire in a continuous campaign that covers the entire Earth. Build your empire from one of three completely unique factions or create...

Caesar IV
Caesar IV

29. Caesar IV

2 years ago Released Sep 2006 Single Player Real Time Strategy

Take on the role of an aspiring provincial governor within Caesar's empire as you build and manage an ancient Roman city and its province. As governor...

Homeworld: Cataclysm
Homeworld: Cataclysm

30. Homeworld: Cataclysm

5 months ago Released Jun 2000 Single & Multiplayer Real Time Strategy

Stand alone expansion pack to Homeworld, made by Barking Dog Studios and published by Sierra Entertainment.

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Popular Games
Half-Life
Half-Life Single & Multiplayer First Person Shooter
SWAT 4
SWAT 4 Single & Multiplayer First Person Shooter
Homeworld 2
Homeworld 2 Single, Multiplayer & Co-Op Real Time Strategy
Aliens vs. Predator 2
Aliens vs. Predator 2 Single & Multiplayer First Person Shooter
Half-Life: Opposing Force
Half-Life: Opposing Force Single Player First Person Shooter
SWAT 4: The Stetchkov Syndicate
SWAT 4: The Stetchkov Syndicate Single & Multiplayer First Person Shooter
Starsiege: Tribes
Starsiege: Tribes Single & Multiplayer First Person Shooter
Homeworld
Homeworld Single, Multiplayer & Co-Op Real Time Strategy
No One Lives Forever 2: A Spy in H.A.R.M's Way
No One Lives Forever 2: A Spy in H.A.R.M's Way Single & Multiplayer First Person Shooter
Evil Genius
Evil Genius Single Player Real Time Strategy
Empire Earth
Empire Earth Single & Multiplayer Real Time Strategy
Half-Life: Blue Shift
Half-Life: Blue Shift Single Player First Person Shooter
Lord of the Rings: War of the Ring
Lord of the Rings: War of the Ring Single & Multiplayer Real Time Strategy
Pharaoh
Pharaoh Single Player Real Time Strategy
Diablo Hellfire
Diablo Hellfire Single & Multiplayer Hack 'n' Slash