Strategy games Stronghold HD and Stronghold Crusader HD are now available on Steam for 30 percent off until Oct. 28.
For a limited time, Stronghold HD is available for $4.19, while Stronghold Crusader HD can be purchased for $6.99. Those who purchase the castle sim titles will additionally receive a free starter pack for Stronghold Kingdoms.
Stronghold HD lets players design, build and destroy historical castles in online campaigns of up to eight players. Its sequel, Stronghold Crusader HD introduces new historical battles from the Crusades, as well as four additional historical campaigns.