2D-Minecraft-except-not Terraria has been been released! More than that, it managed to sell 50,000 copies on its first day of release. If you have six pounds you can buy the game here here and also begin having fun whenever you please. Remarkable!
...the temptation is to leave this post there and go back to playing The Witcher 2, but I shall resist. I've been trained for this. Some details as to precisely what Terraria is, why you should be interested in it and a trailer await after the jump.
I haven't had a chance to play this yet, but essentially it takes Minecraft's framework of exploring a destructible environment, finding components, coming home to avoid the monsters that spawn at night, constructing something and then going off to find more components, except in a simplified, 2D environment. The advantage of this is that the Terraria team have been able to pile content into the game like laundry into a washing machine.
A look at the following trailer should show you what I mean. You don't have to watch all five minutes of it, mind. Just click randomly to get 10 or so clips from it, and see how the biome, enemies and player equipment changes.
Another cool-sounding feature is that once you've built a hovel or castle or bunker of your own, "People will move in to live there and perhaps even sell you different wares to assist you on your journey".
If you're thinking that this sounds like something RPS would want to take a look at, you'd be absolutely right. Until then, however, you're best off watching the developers' twenty three episode long Let's Play videos of their own game.