Games like Imperium Galactica. 20 Similar Games.

1. Imperium Galactica. (1997)
2. Imperium Galactica 2  (2000)
3. Sins of a Solar Empire. (2008) 
4. Nexus: The Jupiter Incident. (2004)  
5. Armada 2526. (2009)
6. Haegemonia: Legions of Iron. (2002)
7. Sword of the Stars. (2006)
8. Lost Empire. (2007)
9. Star Wars: Empire at War. (2007) 
10. Endless Space. (2012)
11. Master of Orion 2. (1996)
12. Space Empires 5. (2000)
13. Galactic Civilizations. (2006)
14. Ascendancy. (1995)
15. Distant Worlds. (2010)
16. Star Wars: Rebellion. (1998)
17. Star Trek: Birth of the Federation. (1999)
18. Pax Imperia: Eminent Domain. (1997)
19. Civilization: Beyond Earth. (2014)
20. Endless Legend. (2014)

Games like Colonization. 31 Similar Games.

1. Free Colonization. (2002)
2. Civilization 4: Colonization. (2008) 
3. Colonization. (1994) 
4. Conquest of the New World. (1995) 
5. Imperialism 2: Age of Exploration (1999) 
6. Trade Empires. (2001) 
7. Free Civilization. (2013) 
8. Unknown Horizons. (2008) 
9. Sid Meier's Pirates. (1987)
10. Civilization 2. (1996)  
11. Call to Power 2 Civilization  (2000)
12. Sid Meier's Alpha Centauri. (1999) 
13. Civilization: Beyond Earth. (2014)
14. Galactic Civilizations 2. (2006)
15. Master of Orion 2. (1996)
16. Space Empires 5. (2000)
17. Ascendancy. (1995)
18. Distant Worlds. (2010)
19. Star Wars: Rebellion. (1998)
20. Sins of a Solar Empire. (2008) 
21. Nexus: The Jupiter Incident. (2004)  
22. Armada 2526. (2009)
23. Haegemonia: Legions of Iron. (2002)
24. Sword of the Stars. (2006)
25. Lost Empire. (2007)
26. Star Wars: Empire at War. (2007) 
27. Endless Space. (2012)
28. Imperium Galactica 2. (2000)
29. Star Trek: Birth of the Federation. (1999)
30. Pax Imperia: Eminent Domain. (1997)
31. Endless Legend. (2014)

Games like Sid Meier's Civilization. 19 Similar Games.

1. Civilization 2. (1996)
2. Civilization 2: Test of Time. (1999)  
3. Civilization 3. (2001)  
4. Call to Power 2 Civilization  (2000) 
5. Civilization 4. (2005) 
6. Civilization 5. (2010)  
7. Civilization: Beyond Earth. (2014) 
8. Free Civilization. (2013 -2015)
9. Free Colonization. (2002 - 2015)
10. Colonization. (1994)
11. Civilization 4: Colonization. (2008)
12. Civilization 4: Dune Wars. (2009)
13. Civilization 4: Planetfall Mod (2006)
14. Galactic Civilizations 2. (2006)
15. Sid Meier's Alpha Centauri. (1999) 
16. Pandora: First Contact. (2014)
17. Warlock: Master of the Arcane. (2012)
18. Elemental: War of Magic. (2010)
19. Master of Magic. (2014)

Games like Fallout Tactics 3 : Brotherhood of Steel. 15 Similar Games.

1. Wasteland 2. (2014)
2. Silent Storm. (2003) 
3. Jagged Alliance 2. (2000)
4. UFO: Enemy Unknown. (X-COM 1) (1994)
5. UFO: Terror from the Deep. (X-COM 2) (1995) 
6. UFO: Apocalypse. (X-COM 3) (1997) 
7. UFO: Extraterrestrials. (2007)
8. Warhammer 40,000: Chaos Gate. (1998)    
9. XCOM: Enemy Within. (2013)
10. Laser Squad Nemesis. (2003) 
11. Xenonauts. (2014)
12. Arcanum. (2001)  
13. Omerta: City of Gangsters. (2013)
14. Invisible Inc. (2015)
15. Krater. (2012)

Games like Craft the World. 12 Similar Games.

 

1. Cultures: Northland. (2002)
2. Terraria. (2011) 
3. Survivors of Ragnarök. (2011) 
4. Minecraft. (2009) 
5. Clonk. (2014) 
6. Starbound. (2013)  
7. Diggles: The Myth of Fenris. (2001) 
8. UnReal World. (1992-2015+) 
9. CastleStorm. (2013)
10. Dungeon Keeper 2. (1999)
11. The Sims. (2000)
12. The Settlers. (1993)

Games like Warlords Battlecry 3. 10 Similar Games.

1. Warlords Battlecry 2. (2002)
2. Rise of Nations. (2003) 
3. Warcraft 3. (2002)
4. Seven Kingdoms 2. (1999)
5. Heroes of Annihilated Empires. (2006)
6. StarCraft: Brood War. (1998)
7. Dune 2. (1992)
8. Command & Conquer: Red Alert. ( 1996)
9. Rise of Legends. (2006)
10. Rage of Mages. (1998)

Games like Jagged Alliance 2. 17 Similar Games.

 

1. Jagged Alliance. (1994)
2. Jagged Alliance: Back in Action. (2010)
3. Jagged Alliance: Flashback. (2013)
4. Jagged Alliance: Online. (2015)
5. Shadowrun Returns. (2013)
6. Silent Storm. (2003)  
7. Brigade E5. (2005)
8. Omerta: City of Gangsters. (2013)
9. Fallout Tactics 3: Brotherhood of Steel. (2001)
10. UFO: Enemy Unknown. (X-COM 1) (1994)
11. UFO: Terror from the Deep. (X-COM 2) (1995) 
12. UFO: Apocalypse. (X-COM 3) (1997) 
13. UFO: Extraterrestrials. (2007)
14. XCOM: Enemy Within. (2013)
15. Laser Squad Nemesis. (2003)
16. Invisible Inc. (2015)
17. Krater. (2012)

Games like Xenonauts. 16 Similar Games.

 

1. UFO: Extraterrestrials. (2007)
2. UFO: Enemy Unknown. (X-COM 1) (1994)
3. UFO: Terror from the Deep. (X-COM 2) (1995) 
4. UFO: Apocalypse. (X-COM 3) (1997) 
5. UFO: Extraterrestrials. (2007)
6. Warhammer 40,000: Chaos Gate. (1998)    
7. XCOM: Enemy Within. (2013)
8. Fallout Tactics 3: Brotherhood of Steel. (2001)
9. Laser Squad Nemesis. (2003)
10. Silent Storm. (2003)
11. Jagged Alliance 2. (2000)
12. Omerta: City of Gangsters. (2013)
13. Invisible Inc. (2015)
14. Krater. (2012)
15. UFO Aftermath. (2003)
16. UFO Aftershock. (2005)
17. UFO Afterlight. (2007)

Games like Eador. 12 Similar Games.

1. Eador: Masters of the Broken World (2014) 
2. King's Bounty: Armored Princess (2009)
3. Heroes of Might and Magic 4. (2002)
4. Disciples 2. (2002)
5. Dominions 4. (2014)
6. Age of Wonders 2. (2002) 
7. Warlords 2. (1993)
8. Worlds of Magic. (2015)
9. Scrolls. (2013) 
10. Master of Magic. (1994)
11. Elemental: War of Magic. (2010)
12. Warlock: Master of the Arcane. (2012)

Games like Unreal Tournament. 14 Similar Games.

 

1. Doom. 
2. Quake. 
3. Counter Strike. 
4. Wolfenstein. 
5. Serious Sam.
6. Halo. 
7. Crysis.  
8. Borderlands.
9. Team Fortress.
10. Battlefield.
11. Far Cry.
12. Call of Duty.
13. Half Life.
14. Bio Shock.