You, Sir Fortix, the lone knight of the kingdom, are called upon to save the land of Artalom from the clutches of the evil mage Xitrof -- alone. Without any help whatsoever. That’s the gist of Fortix 2, an unexpectedly nifty puzzle title -- think of it as a “reverse tower defense” game. You have to control all the units on the map (gates, keys, towers, power-ups, catapults, and so on) by boxing off terrain, which captures anything within it. What’s more, you have to box off the units without disrupting the lines you’re creating -- any interruptions will immediately kill your character.