What are some alternatives?
When comparing Sid Meier’s Civilization VI and Stronghold, you can also consider the following products
Age of Empires - Age of Empires is the critically acclaimed, award winning Real Time Strategy (RTS) game with a legacy spanning over 20 years and nearly a dozen titles in the franchise.
FreeCiv - Freeciv is an open-source, turn-based strategy game based on Civilization II.
0 A.D. - 0 A. D. is a free, open-source, historical Real Time Strategy (RTS) game currently under development by Wildfire Games, a global group of volunteer game developers. Download 0 A. D.
Total War - Total war is a turn based/ RTS strategy game, you play in different historical battles.
Warcraft III - A generation before the events of World of Warcraft begin…
Age of Mythology - Age of Mythology. The game that transports players to a time when heroes did battle with monsters of legend and the gods intervened in the affairs of mortals. Use mythological creatures like Minotaurs and Cyclopes to bolster your armies' strength.