80		Utopia: The Creation of a Nation (DOS, 1992)
75		Dogs of War (Windows, 2000)
54		Oil Tycoon (Windows, 2001)
54		Day Trader (Windows, 2001)
52		StarPeace (Windows, 2003)
51		Holiday World (Windows, 2004)
50		Gemini Lost (Windows, 2009)
50		My Tribe (Windows, 2008)
50		GhostControl Inc. (Windows, 2014)
50		Virtual Villagers: The Lost Children (Windows, 2007)
50		Reprisal Universe (Windows, 2015)
50		DQ Tycoon (Windows, 2008)
50		Virtual Villagers: The Secret City (Windows, 2008)
46		Majesty: The Fantasy Kingdom Sim (Windows, 2000)
46		Battle Isle: The Andosia War (Windows, 2000)
46		Call to Power II (Windows, 2000)
45		WarTorn (Windows, 2000)
45		Reach for the Stars (Windows, 2000)
44		The Nations (Windows, 2001)
44		M.A.X.: Mechanized Assault & Exploration (Windows, 1996)
43		1503 A.D.: The New World (Windows, 2003)
43		Dominant Species (Windows, 1998)
43		M.A.X.: Mechanized Assault & Exploration (DOS, 1996)
43		Deadlock II: Shrine Wars (Windows, 1998)
42		Anno 2070 (Windows, 2011)
42		Master of Orion 3 (Windows, 2003)
42		Populous (DOS, 1989)
41		Nemesis of the Roman Empire (Windows, 2004)
40		UFO: Afterlight (Windows, 2007)
40		Cuban Missile Crisis: The Aftermath (Windows, 2005)
40		Planet M.U.L.E. (Windows, 2009)
40		Hard Truck Tycoon (Windows, 2006)
40		Light of Altair (Windows, 2009)
40		Anno 2205 (Windows, 2015)
40		Populous (Windows, 2011)

Notes: Games similar to Mayday: Conflict Earth, Games like Mayday: Conflict Earth, Boris Games, JoWooD Productions Software AG, Windows, Strategy, Tactics, Sci-Fi, Futuristic, Managerial, Business Simulation, Real-Time, Isometric, PC, Game Similarities.