Games like Space Empires 5. 25 Similar Games.

1. Space Empires 2. (1995)
2. Space Empires 3. (1997)
3. Space Empires: Starfury. (2003)
4. Space Empires 4. (2000)
5. Galactic Civilizations. (2003) 
6. Master of Orion 2. (1996)
7. Ascendancy. (1995)
8. Distant Worlds. (2010)
9. Star Wars: Rebellion. (1998)
10. Sins of a Solar Empire. (2008) 
11. Nexus: The Jupiter Incident. (2004)  
12. Armada 2526. (2009)
13. Haegemonia: Legions of Iron. (2002)
14. Sword of the Stars. (2006)
15. Lost Empire. (2007)
16. Star Wars: Empire at War. (2007) 
17. Endless Space. (2012)
18. Imperium Galactica 2. (2000)
19. Star Trek: Birth of the Federation. (1999)
20. Pax Imperia: Eminent Domain. (1997)
21. Civilization 4: Dune Wars. (2009)
22. Civilization 4: Planetfall. (2006) 
23. Civilization: Beyond Earth. (2014)
24. Sid Meier's Alpha Centauri. (1999) 
25. Endless Legend. (2014)