| Year | Expansion | Developer | Setting | Platform | Notes |
| 1996 | Command & Conquer: The Covert Operations | Westwood | Alternate History, Sci-fi | DOS, WIN | Expansion to Command & Conquer. |
| 1996 | Warcraft II: Beyond the Dark Portal | Blizzard | Fantasy | | Expansion to Warcraft II: ToD. |
| 1997 | Command & Conquer: Red Alert - Counterstrike | Westwood | Alternate History, Sci-fi | DOS, WIN | 1st expansion to Command & Conquer: RA. |
| 1997 | Command & Conquer: Red Alert - The Aftermath | Westwood | Alternate History, Sci-fi | DOS, WIN | 2nd expansion to Command & Conquer: RA. |
| 1998 | Battle Grounds | Ubisoft, Macmillan | Sci-fi | WIN | 1st official expansion for Battlezone. |
| 1998 | Dark Colony: The Council Wars | Take-Two Interactive Software | Sci-fi | WIN | Expansion to Dark Colony. |
| 1998 | StarCraft: Brood War | Blizzard | Sci-fi | MAC, WIN | Expansion to StarCraft. |
| 1998 | The Red Odyssey | Team Evolve | Sci-fi | WIN | 2nd official expansion for Battlezone. |
| 1998 | Total Annihilation: Battle Tactics | Cavedog | Sci-fi | WIN | Expansion to Total Annihilation. |
| 1998 | Total Annihilation: The Core Contingency | Cavedog | Sci-fi | MAC, WIN | Expansion to Total Annihilation. |
| 1999 | Corsairs: The New Conquerors | Microïds | Historical | WIN | Expansion to Corsairs: CaS. |
| 2000 | Age of Empires II: The Conquerors | Ensemble | Historical | MAC, WIN | Expansion to Age of Empires II: The Age of Kings. |
| 2000 | Earth 2150: The Moon Project | Reality Pump Studios | Sci-fi | WIN | Expansion to Earth 2150. |
| 2000 | Homeworld: Cataclysm | Barking Dog | Sci-fi | WIN | Expansion to Homeworld. |
| 2001 | Command & Conquer: Red Alert 2 - Yuri's Revenge | Westwood | Alternate History, Sci-fi | WIN | Expansion to Command & Conquer: Red Alert 2. |
| 2001 | Cossacks: The Art of War | GSC | Historical | WIN | 1st SA expansion to Cossacks: EW. |
| 2001 | Knights and Merchants: The Peasants Rebellion | Joymania | Fantasy | WIN | SA expansion to Knights and Merchants: TSK. |
| 2001 | Kohan: Ahriman's Gift | TimeGate | Fantasy | WIN | Expansion to Kogan: IS. |
| 2002 | Battle Realms: Winter of the Wolf | Liquid Entertainment | Fantasy | WIN | Expansion to Battle Realms. |
| 2002 | Cossacks: Back to War | GSC | Historical | WIN | 2nd SA expansion to Cossacks: EW. |
| 2002 | Earth 2150: Lost Souls | Reality Pump Studios | Sci-fi | WIN | Expansion to Earth 2150. |
| 2002 | Empire Earth: The Art of Conquest | Mad Doc Software | Historical, Alternate History, Sci-fi | WIN | Expansion to Empire Earth. |
| 2002 | Real War: Rogue States | Rival Interactive, Semi Logic Entertainments | Modern War | WIN | Standalone expansion to Real War. |
| 2003 | Age of Mythology: The Titans | Ensemble | Mythology | WIN | Expansion to Age of Mythology. |
| 2003 | American Conquest: Fight Back | GSC | Historical | WIN | 1st SA expansion to American Conquest. |
| 2003 | Command & Conquer: Generals – Zero Hour | EA | Modern War | WIN, MAC | Expansion to Command & Conquer: Generals. |
| 2003 | Warcraft III: The Frozen Throne | Blizzard | Fantasy | | Expansion to Warcraft III: RoC. |
| 2004 | Battle Mages: Sign of Darkness | Targem Games | Fantasy | WIN | Stand-alone expansion to '. |
| 2004 | Rise of Nations: Thrones and Patriots | Big Huge | Historical | OSX, WIN | Expansion to Rise of Nations. |
| 2004 | SpellForce: Breath of Winter | Phenomic | Fantasy | WIN | 1st expansion to SpellForce: The Order of Dawn |
| 2004 | SpellForce: Shadow of the Phoenix | Phenomic | Fantasy | WIN | 2st expansion to SpellForce: The Order of Dawn |
| 2005 | Perimeter: Emperor's Testament | K-D Lab | Sci-fi | WIN | Stand-alone expansion to Perimeter. |
| 2005 | Warhammer 40,000: Dawn of War: Winter Assault | Relic | Sci-fi, Fantasy | WIN | Expansion to Warhammer 40,000: Dawn of War. |
| 2006 | Act of War: High Treason | Eugen | Contemporary, Sci-fi | WIN | Real-time tactics. Expansion to Act of War: Direct Action. |
| 2006 | Age of Empires III: The War Chiefs | Ensemble | Historical | OSX, WIN | Expansion to Age of Empires III. |
| 2006 | American Conquest: Divided Nation | GSC, Revolution Strategy | Historical | WIN | 2nd SA expansion to American Conquest. |
| 2006 | Cossacks II: Battle for Europe | GSC | Historical | WIN | SA expansion to Cossacks II: NW. |
| 2006 | Empire Earth II: The Art of Supremacy | Mad Doc Software | Historical, Alternate History, Sci-fi | WIN | Expansion to Empire Earth II. |
| 2006 | Legion Arena: Cult of Mithras | Slitherine Strategies | Historical | WIN, OSX | Expansion to Legion Arena. |
| 2006 | Lord of the Rings: The Battle for Middle-earth II: The Rise of the Witch-king, The | EA | Fantasy | WIN | Expansion to The Lord of the Rings: The Battle for Middle-earth II. |
| 2006 | Star Wars: Empire at War: Forces of Corruption | Petroglyph | Sci-fi | WIN | Expansion to Star Wars: Empire at War. |
| 2006 | Warhammer 40,000: Dawn of War: Dark Crusade | Relic | Sci-fi, Fantasy | WIN | 1st SA expansion to Warhammer 40,000: DoW. |
| 2007 | Age of Empires III: The Asian Dynasties | Ensemble | Historical | WIN | Expansion to Age of Empires III. |
| 2007 | Company of Heroes: Opposing Fronts | Relic | Historical | WIN | Expansion to Company of Heroes. |
| 2007 | Fate of Hellas | World Forge | Historical | WIN | Stand-alone expansion pack to Ancient Wars: Sparta. |
| 2007 | SpellForce 2: Dragon Storm | Phenomic | Fantasy | WIN | 1st expansion to SpellForce 2: Shadow Wars. |
| 2007 | Supreme Commander: Forged Alliance | Gas Powered | Sci-fi | WIN | Expansion to Supreme Commander. |
| 2008 | Command & Conquer 3: Kane's Wrath | EA | Sci-fi | WIN, X360 | Expansion to Command & Conquer 3: TW. |
| 2008 | ' | Legend Studios | Historical, Alternate History | WIN | SA expansion to Sombras de Guera: La Guerra Civil Española. |
| 2008 | Warhammer 40,000: Dawn of War: Soulstorm | Relic | Sci-fi, Fantasy | WIN | 2nd SA expansion to Warhammer 40,000: DoW. |
| 2009 | Command & Conquer: Red Alert 3 – Uprising | EA | Alternate History, Sci-fi | WIN | SA expansion to Command & Conquer: RA3. |
| 2009 | Company of Heroes: Tales of Valor | Relic | Historical | WIN | Expansion to Company of Heroes. |
| 2009 | World in Conflict: Soviet Assault | Massive | Alternate history | PS3, WIN, X360 | Expansion to World in Conflict. |
| 2010 | Sins of a Solar Empire: Trinity | Ironclad | Sci-fi | WIN | Combo of Sins of a Solar Empire & 1st 2 expansions. |
| 2010 | Warhammer 40,000: Dawn of War II – Chaos Rising | Relic | Sci-fi, Fantasy | WIN, LIN, OSX | Expansion to Warhammer 40,000: Dawn of War II. |
| 2011 | Warhammer 40,000: Dawn of War II – Retribution | Relic | Sci-fi, Fantasy | WIN, LIN, OSX | 2nd expansion to Warhammer 40,000: Dawn of War II. |
| 2012 | Hegemony Gold: Wars of Ancient Greece | Longbow Games | Historical | WIN | Expansion of Hegemony: Philip of Macedon. |
| 2012 | Sins of a Solar Empire: Rebellion | Ironclad | Sci-fi | WIN | First stand-alone expansion to Sins of a Solar Empire. |
| 2012 | SpellForce 2: Faith in Destiny | Trine Games | Fantasy | WIN | 2st expansion to SpellForce 2: Shadow Wars. |
| 2013 | Age of Empires II HD: The Forgotten | SkyBox Labs, Forgotten Empires | Historical | WIN | 1st expansion to Age of Empires II: HD Edition |
| 2013 | StarCraft II: Heart of the Swarm | Blizzard | Sci-fi | OSX, WIN | First StarCraft II expansion. |
| 2015 | Age of Empires II HD: The African Kingdoms | SkyBox Labs, Forgotten Empires | Historical | WIN | 2st expansion to Age of Empires II: HD Edition |
| 2015 | Planetary Annihilation: Titans | Uber Entertainment | Sci-fi | WIN, OSX, LIN | Planetary Annihilation standalone expansion. |
| 2015 | StarCraft II: Legacy of the Void | Blizzard | Sci-fi | OSX, WIN | Second StarCraft II expansion. |
| 2016 | Age of Empires II HD: Rise of the Rajas | SkyBox Labs, Forgotten Empires | Historical | WIN | 3st expansion to Age of Empires II: HD Edition |
| 2016 | Age of Mythology: Tale of the Dragon | Forgotten Empires, SkyBox Labs | Mythology | OSX, WIN | Expansion to Age of Mythology: Extended Edition |
| 2016 | Ashes of the Singularity: Escalation | Oxide Games, Stardock | Sci-fi | WIN | Stand-alone expansion to Ashes of the Singularity. |
| 2017 | Cossacks 3: Guardians of the Highlands | GSC | Historical | WIN | Expansion to Cossacks 3. |
| 2019 | SpellForce 3: Soul Harvest | THQ Nordic | Fantasy | WIN | Standalone expansion to Spellforce 3. |
| 2020 | SpellForce 3: Fallen God | THQ Nordic | Fantasy | WIN | Standalone expansion to Spellforce 3. |
| 2021 | Call to Arms - Gates of Hell: Ostfront | Digitalmindsoft | Historical | WIN | Real-time tactics. SA expansion to Call to Arms. |