The second game in the famous Elder Scrolls series, this one called The Elder Scrolls II: Daggerfall.
Daggerfall is a sprawling MS-DOS-based RPG, full of monsters and magic (and fun), and was first released by Bethesda (and US Gold, in the UK anyway), back in 1996.
Compared to Oblivion and Skyrim, Daggerfall looks a little clunky by today’s standards, but it still plays pretty well, if you can come to terms with the arcane interface, gameplay and presentation. And it is a HUGE game – possibly the largest Elder Scrolls game ever – although ‘big’ doesn’t mean ‘best’, and in the context of this game it can mean getting lost quite often. Thankfully you can search for locations by typing in their name, otherwise you’d be looking forever.
Last time I checked, Bethesda was offering Daggerfall for download – for free – from their website. Which is nice of them! Definitely worth checking out if you love your Role-Playing Games. You’ll need DOSBox to get it running though (unless you are adventurous and know how to use MS-DOS).