If you like RPGs, you'll love the best one ever made

 The best RPG ever made is Skyrim, which Legend has been playing on the hardest possible difficulty, but you should not do that until after you have played through the game once. 

Skyrim's developers devoted more productive time to it than any other RPG I know. Every space in this beautiful, cold, northern world runs well, and has cover and other features that both tell a story and make for combat that's a little different each time.

You'll learn to be an archer, sneaking around. Don't forget to poison your bow with readily available spider poison picked up in the wild. 

You'll cast spells and save the world for the Magician's Guild.

I would avoid the Fighter's Guild until late in the game, but if you do not -- don't complain that I did not warn you.

I would join the thieves' guild early on, as Legend did.

I would refuse to join the Assassin's guild -- but of course that's up to you.

You will meet the Daedra, powerful god-like beings most of whom have petty agendas (some have glorious agendas that you will be delighted to play a role in).  If you are playing as a good character, Azura and Meridia are appropriate for you. If you are evil, anything goes...

If you enjoy this game, try the older games, Oblivion and Morrowind (you'll need a game guide for Morrowind and perhaps for Oblivion).

In all of these games, I recommend working your way up the Guild hierarchies before tackling the main quest, although this is less important in Skyrim than in the previous two games.