Just wanted to give a head’s up to Battle for Wesnoth, a turn-based fantasy role playing game.  In spirit, it is similar to Warcraft, at least the original (I haven’t played the newest incarnation of WoW, so I don’t know how it compares to that one).  In Wesnoth, you control a commander who can summon troops of various types (elves, dwarves, gryphon riders, knights, mermen, etc, depending on your accomplishments up to that point in the game).  I’ve played the main scenario, entitled, appropriately, “Battle for Wesnoth”.  As your troops fight and gain experience, they also gain levels.  You have some control on their development (for example, lancers can become either knights or paladins, it is up to you).  You fight other humans, orcs, undead, and so on.  Each scenario has a set of objectives for you to meet (just last through the turns, kill the leaders, get your army to the other side).

It is a pretty fun game.  And, the best thing is that it is free to download.  I’d highly recommend it. I played it on a Mac and there were no problems.  I cheated a bit, saving the game at some key moment and reloading it if my attack didn’t go as I’d hoped (there is, as is usual in these games, an element of chance whenever an attack occurs).