In a recent conference with Gamespot, Blizzard wanted to ease the minds of all the StarCraft 2 fans out there who saw early screen shots and cried "foul". According to Blizzard's top creative talent, Rob Pardo, there are five major differences between StarCraft 2 and Warcraft 3: 1. Quantity vs. Quality StarCraft 2 will be a numbers game. More with firepower will dominate the few with abilities. 2. More Emphasis On Economic Activity As with the first StarCraft, one of the main keys to victory will be in the build-up of your forces. This was never a key feature in Warcraft 3. 3. Rushing - Strongly Encouraged Fast and forceful. Keep the enemy occupied while you build up your forces and rush them again. 4. The Good, The Bad and The GOSU Warcraft 3 was a more accessible game to beginners, but those who have playedStarCraft will reap the benefits in StarCraft 2. 5. Beyond Rock, Paper, Scissors Blizzard will be introducing more features using "Fog of War" tactics. Troop placement, maneuverability and key positioning will all be needed for victory. He still didn't answer one simple question; was it made on the Warcraft 3 engine? Source