Ah, if there is one game I have played more hours than Mount and Blade it is Oblivion. A true masterpiece.

The game has a pretty good replay value, and even when you are completely finished with playing seriously, you still have many hours trying to find glitches, using cheats, searching for easter eggs and other things, just randomly messing around, etc etc. It was awesome.
One nice thing to do in Oblivion was to create a new character, use the cheats psb and tgm (all spells and godmode), use the cheat for the spellmaker and then create the best command humanoid spell you can possibly make. After you have done that you have to run around the imperial city, using the spell on every single one of them (while in the meantime using the spell on the entire group so they keep on following you) untill you have gathered an entire army. Then you have to resurrect all the guards which are also influenced by your spell and attack one. And voila: CIVIL WAR!!!
Some of the civilians actually hold up fairly well against the guards, especially the shopkeepers who wear cuirasses and the mages, if you managed to add enough men to your army both sides will be pretty evenly matched! It is fun to just watch the fight by using the noclip camera cheat, but participating in it also is something I recommend.