With their rich history, iconic status and association with bloody violence, it's surprising that more videogames haven't been made about the Knights Templar, at least outside of the Assassin's Creed series. Perhaps it's because a violent videogame based on them would be intrinsically linked to the Catholic Church, and the limited choice of opposing forces would lead to a rather politically incorrect game when viewed with modern eyes.
Whatever the reason, few games revolve around the Church's hired killers, and so it always catches my eye when I see one. The Cursed Crusade is one such game, aiming to take a dark and twisted view of Christ's most famous military order.
It also reminds me of another good reason why many games aren't themed around Templars: they don't tend to be very good.