Make Fallout 3 Multiplayer as a DLC. Sell it and make a profit. You dont even have to make full game. If you sell multiplayer DLC then people might just buy the whole Fallout 3(those who dont have it yet) to play multiplayer. I see a lot of people wanting multiplayer in fallout 3 but still there are many people who dont want to see multiplayer (a good singleplayer game doesnt need multiplayer option some say). Its just a market move in which you can resell Fallout 3 again and offer a DLC that could include multiplayer for a reasnoble price(i have no doubt that the game will sell good again). It would be like Disney made with his own movies remakeing them every 10 years and making huge proffit every time (because people just dont mind seeing a classic again). Here is a good example of a guy who's making a multiplayer option all by himself http://www.youtube.com/user/BLUEEYESSEVEN . I often ask myself why dont companies aid projects made by people?(they could offer him a job or a paycheck because he is doing something awesome).
Anyway i think that multiplayer option in new vegas or fallout 3 is no biggie for a company like Bethesda or Obsidian, i think they are just
Spoiler
.lazy sometimes
Please make multiplayer!
