I still have KOEI Genghis Khan and RTK in my 486 DX4. They are still fun to play once in a while.

In RTK, I like the smart advisors who can help me set up some traps. They also warn me about possible enemy traps. Ambush is simple but very nice. Shooting firebolt to cause fire is my greatest fun. Also, I can shoot fire arrows to cause fire where I suspect there are troops ambushing. And, generals dual.

In Genghis Khan, diplomatic and trade is great. Trategy and tactic is fun too.