If you ever sat down and watched The Tree House of Horrors episode where Lisa creates an advanced civilisation out an old tooth and some cola and thought I wish I could do that, or perhaps you're a scientist with dreams of creating a brand new species with intelligence to rival our own, then you'll probably enjoy Spore.
You can get hold of a copy of the game for £7.99 from Cool Shop UK, which is pretty good value for money and should save you almost £2 on the next best offer of £9.93 coming in from The Hut.
Spore lets you guide the evolution of your wily little critters from their humble beginnings as microscopic organisms, to complex social creatures who's civilisation'll eventually extend across the planet's surface, until they finally build vessels that allow them to traverse the vast expanse of space.
As you progress through the game you get to add traits to our creatures that'll help them in later stages and both the appearance and bonuses provided by them'll depend on how aggressively or passively you've been playing.
There are a number of objectives and tasks for you to complete in each stage, for example the key to civilisation stage is capturing rival cities and during the space stage you can abduct other creatures and transport them to neighbouring planets in order to test their habitability.
With a massive range of creatures to construct that'll almost certainly be different each time you play through the game, Spore's definitely worth a go.
Thanks to millarcat @ HUKD