I'm considering buying Spore, all my friends say it's great, is it the sort of game that goes on and on with no proper goal (like Sims) or is it an action game with a goal?
Goal of cell stage: Get big by eating meat or kelp.
Goal of creature stage: Get evolved by eating animals or sucking their richard and playing ring around the rosies with them.
Goal of tribal stage: Conquer the 1 mile radius around your tribe by destroying other tribes or sucking their richard and playing orchestras for them.
Goal of civilization stage: Conquer the planet by destroying them, buying them or sucking their richard and shooting musical pieces at them.
Goal of space stage: Conquer solar systems by taking over the planets/destroying them, buying them or plant colonies. Oh and you win the game, which is basically the end because by the point of 'the end' you're pretty much done the whole game.