You mean more obscure than Rogue?
Well I'm going to say my favorite game series is probably Romance of the Three Kingdoms. Not too obscure I guess, but you don't see it mentioned much on English websites. It's a empire strategy game series where you play a ruler in ancient china. You get the standard decisions to make, build economy, invade your neighbors, make treaties, etc...but the real meat of the game is wrangling your generals.
Each general has certain attributes making them better battle commanders, administrators, etc...they each have a nice portrait and a little bit of lore behind their personalities.
So say you are going to invade Dong Zhou, a powerful warlord. You train up your troops, arm them, lay in a good supply of rice and march on his stronghold. His impetuous young warrior, Lu Bu, comes out and challenges your ruler to One on One combat.
"We'll settle this war right here, you and me, no need for more bloodshed." You decline the offer, since Lu Bu is the greatest swordsman ever. Your troops, seeing this, start to desert you due to perceived cowardice.
With your remaining troops you are still able to surround Dong Zhou's fortress and capture him. You also capture Lu Bu...Lu Bu decides to join your cause now that you have shown your prowess on the field of battle.
In the next seige, this time of a the weak intellectual and descendent of Confucious, Kong Rong, Lu Bu proves his worth in battle by slaying one of the enemy generals in a duel. He then betrays your cause and joins Kong Rong, foiling the invasion.
You spend the next 2 hours of game time planning your vengeance.
Yep. Great games.