53		Dark Rising (Windows, 2017)
53		Tiny Toyfare (Windows, 2017)
52		Defense Task Force (Windows, 2018)
52		Cubemen (Windows, 2012)
45		Dungeons II (Windows, 2015)
45		Might & Magic: Heroes VII (Windows, 2015)
44		UFO Online: Fight for Earth (Windows, 2014)
44		Might & Magic: Heroes VII - Trial by Fire (Windows, 2016)
44		Deadbreed (Windows, 2016)
42		King's Bounty: Armored Princess (Windows, 2009)
42		Might & Magic: Heroes VI (Windows, 2011)
42		Defense Grid: The Awakening (Windows, 2009)
42		Heroes of Might and Magic V (Windows, 2006)
41		Warlords (DOS, 1990)
41		Armies of Exigo (Windows, 2004)
41		Majesty: The Fantasy Kingdom Sim (Windows, 2000)
41		Heroes of Might and Magic V: Tribes of the East (Windows, 2007)
41		Majesty 2: The Fantasy Kingdom Sim (Windows, 2009)
40		Rival Realms (Windows, 1998)
40		World of Battles (Windows, 2009)
40		Lords of EverQuest (Windows, 2003)
40		Hammer & Sickle (Windows, 2005)
40		WorldShift (Windows, 2009)
40		Sol Survivor (Windows, 2010)
40		Final Odyssey (Windows, 1999)
40		Medieval Conquest (Windows, 2004)

Notes: Games similar to Hydraulic Empire, Games like Hydraulic Empire, Batholith Games, Batholith Games, Windows, Strategy, Tactics, RPG elements, Tower Defense, Bird's-eye view, Free-roaming camera, PC, Game Similarities.