Fallout 3: Operation Anchorage

Yeah, even if with a completely level one character Fallout 3: Operation Anchorage is easy and not a particularly ripping diversion. It's pretty much just a rail shooter but when all is said and done it's just a training vehicle.

On the upside:

• It's a great place to very quickly level a starter character.
• Having immediate access to a mountain of powerful equipment. The T-51b power armor is instantly wearable. Plus the Guass Rifle and Chinese Stealth Armor are helpful.
• It's an excuse to play Fallout 3.