What kind of games are similar to Skyrim and simulators like the Sims that can be played on the XBox or 3DS

You mentioned Skyrim, so I am assuming that you are into MMORPGs. If so, then you must be familiar with titles like Stracraft and World of Warcraft. I know that those games are pretty old. But Blizzard is rolling out a new game this year - Heroes of the Storm. It is going to be in the MOBA genre instead, but will feature all your fave characters from SC, WoW and other Blizzard franchises. It is rather exciting especially the battlegrounds that will be in the game. Anyway, to give you a more in-depth explanation of the game, you can read from here: heroesofthestormsource.com/guide/.