Green gaming for very little green

Unless you missed out on An Inconvenient Truth – or just about any piece of mainstream media in the last five years – you know that “going green” is not only “in”, but it’s essential. Though it’s rare that games let you save the world in the more realistic sense (that is, from the evils of over consumption and pollution, rather than from aliens or super villains), but I’ve run across a few in my green-oriented travels. The following titles are not only environmentally oriented, but they come in at a wallet-friendly price of free – making them just as easy on your green as Mother Earth’s.