* The Sims (50 million,[186] 70 million including expansions)
* Lineage 2 (14 million customers)
* The Sims 2 (13 million)
o The Sims 2: Pets [expansion pack] (5.6 million)
o The Sims 2: Seasons [expansion pack] (1 million)
* World of Warcraft (10 million subscribers)
o World of Warcraft: The Burning Crusade [expansion pack] (3.5 million)
* StarCraft (9.5 million, may include StarCraft: Brood War)
* Half-Life (8 million)
* Myst (6 million)
* Guild Wars (5 million in North America, Europe, and Asia; includes Factions, Nightfall, and Eye of the North)
* Cossacks: European Wars (4 million)
* Diablo II (4 million)
o Diablo II: Lord of Destruction [expansion pack] (1 million;2 million shipped)
* Half-Life 2 (4 million)
* Populous (4 million)
* RollerCoaster Tycoon (4 million in North America)[200]
* Doom 3 (3.5 million)
* EverQuest (3.5 million)
* Theme Park (3.5 million)
* Age of Empires (3 million)
o Age of Empires: The Rise of Rome [expansion pack] (1 million)
* Civilization IV (3 million,[156] may include Mac OS X version)
* Command & Conquer: Red Alert (3 million)
* Warcraft III: Reign of Chaos (3 million)
o Warcraft III: The Frozen Throne [expansion pack] (1 million)
* Age of Empires III (2.5 million)
* Anno 1503 (2.5 million)
* Anno 1602 (2.5 million)
* Cossacks II: Napoleonic Wars (2.5 million)
* Diablo (2.5 million)
* Battlefield 1942 (2.44 million)
* BioShock (2.2 million shipped, includes Xbox 360 version)
* Battlefield 2 (2.09 million)
* Baldur's Gate (2 million)
* Baldur's Gate II: Shadows of Amn (2 million)
* Black & White (2 million)
* Civilization III (2 million)
* Doom II: Hell on Earth (2 million)
* Mafia: The City of Lost Heaven (2 million)
* Neverwinter Nights (2 million)
* Ragnarok Online (2 million North American subscribers)
* Riven (2 million)
* The 7th Guest (2 million)
* Warcraft II: Tides of Darkness (2 million)
* Age of Empires II: The Age of Kings (2 million shipped)
* Sacred (1.8 million)
* Quake (1.7 million)
* S.T.A.L.K.E.R.: Shadow of Chernobyl (1.65 million)
* Command & Conquer: Tiberian Sun (1.5 million)
* Crysis (1.5 million)
* Duke Nukem 3D (1.5 million)
* Star Wars Galaxies (1.5 million)
* The Orange Box (at least 1.5 million)
* Battlefield Vietnam (1.34 million)
* Harry Potter and the Philosopher's Stone (1.3 million in US)
* SimCity 3000 Unlimited (1.1 million in US)
* Zoo Tycoon (1.1 million in US)
* Hellgate: London (1 million subscribers)
* Age of Mythology (1 million)
* American McGee's Alice (1 million)
* Blade Runner (1 million)
* Counter-Strike (1 million)
* Dungeon Lords (1 million)
* Command & Conquer: Tiberium Wars (1 million)
* Daryl F. Gates' Police Quest: SWAT (1 million)
* Empire Earth (1 million)
* Glory of the Roman Empire (1 million)
* Hidden & Dangerous (1 million)
* Imperivm III: Great Battles of Rome (1 million, distributed only in Italy and Spain)
* Operation Flashpoint: Cold War Crisis (1 million)
* Patrician III: L'Impero Dei Mari (1 million, distributed only in Italy and Spain)
* Phantasmagoria (1 million)
* Quake II (1 million)
* Railroad Tycoon II (1 million)
* Return to Castle Wolfenstein (1 million shipped)
* Return to Zork (1 million)
* Runaway: A Road Adventure (1 million)
* Supreme Commander (1 million)
* The Legend of Sword and Fairy 3 (1 million)
* Tropico (1 million)
* Unreal (1 million)
* Unreal Tournament (1 million)
* Vietcong (1 million)
* Age of Conan: Hyborian Adventures (1 million shipped)
* Deer Hunter (1 million shipped)
* Command & Conquer: Red Alert 2 (1 million shipped)