The expansion pack Brood War pushes the already great Starcraft game even further. A few new units have been added to the old spectacle. The Terrans have got a Medic, a helpful addition because their soldiers aren't particularly strong, and they also have the new Valkyrie plane, a quick assault plane. The Zerg have the Lurker, a nasty thing that can hide underground (like nearly all Zerg units) and releases its sharp spines as soon as the enemy comes too close. This unit is an excellent way to protect the Zerg bases, so that these become even more hard-to-capture strongholds. There's also the flying Devourer, a huge monster that makes the Zerg much stronger in the air than they were before (those Scourges aren't that strong, after all). But it is the Protoss who have received the most interesting additions: the great Dark Templar units that were available sometimes in the missions of the original, have now become standard units. This fast stealth attacker (he can only be seen by detector units) balances the lack of strong small infantry with the Protoss. And: just like with the familiar High Templars, two Dark Templars can fuse to a Dark Archon, a great unit that can mind-control enemies (probably, the Yuri units in Red Alert 2 have borrowed this idea). This can be an immensely powerful addition to the battle, though, as with so much in Starcraft, you have to use these units carefully. They cost a lot, after all! There are also new campaigns, with again some of the well-known great animation movies and a new, great story (And believe it or not, Sarah Kerrigan returns once again!). I find the campaigns generally harder than those in the original, but that's only good news. This add-on just has everything of the original, and then even better. Not to be missed!