New Vegas was being developed by Obsidian, with Bethy as publisher. And Obsidian have some people who were both Fallout 1 and 2 developers. If you loved New Vegas quests, storyline and world and you're not scared by 2D, give it a try. But if you think Fallout 3 is better Fallout then New Vegas, don't touch FO1 or FO2.