What does massively single player mean?
Spore is the best of both worlds. It has some of the best features of online multiplayer games. You can share all your creations with people round the world, and check out everything they are making. AI-controlled copies of their creatures and vehicles will populate your game, keeping it fun and fresh. At the same time, you are not playing directly with other people so no-one can come into your personal world and destroy it.
