Neverwinter Nights is an RPG which is completely amazing because it is immensely customizable. You can play solo campaigns, you can play multiplayer campaigns, and you can play online on what are effectively MMOs (abet with playerbases in the dozens to hundreds instead of tens of thousands). It has a complete toolset that can be used to tweak almost every mechanic and create custom content - the original "official" Bioware campaigns make up like 0.1% of what's available for the game, and a ton of the user made content blows the original campaigns out of the water. Users can also add new content in the form of ".hak" files, which add new creature models, new tilesets, new weapons, new feats (like talents), etc. If you like RPGs at all and want to unlock a whole new universe of fun and adventure, you need to buy this game.
