If you've always wanted to live in a world populated by elves, dwarves and wizards, you don't need to pay for asubscription or buy the Special Extended DVD Trilogy Edition of just yet. You could instead give a try — an turn-based strategy game in a fantasy setting. For the practically minded, "open-source" means that the code which the game is made of is available to anyone who wishes to use, redistribute or change it. It was created by volunteers and can be freely shared. Even the multiplayer online part of the game is free (no ads or spyware either).