FireFly Studios' Stronghold Crusader

The Good
Build and defend your forts against your enemies in real time. Train soldiers to man the walls, build towers for them to stand on. The graphics are great and you can make very realistic looking castles. The system requirements are very low for a game which came out in 2002, which is great for people on slower systems. You can now play skirmish against the computer.

The Bad
The new arab units don't need anything to build except gold, so you can instantly create big armies without having to make their weapons. The units seem vaguely racist too, mostly weak units which can't stand up 1-to-1 to the 'western' units, units whose purpose seem suicidal (like torch-bearing slaves who light buildings on fire).

The Bottom Line
An expansion and improvement on the original stronghold. With new units, better gameplay and more game options (like multiplayer).