King of the Castle is a map I made quite some time ago.
2 teams scramble to get inside the castle and claim the throne to receive rewards for their team. Such as, health, armour, ammo, grenades, quad damage, ring of shadows, pentagram of protection, 1 point, and 10 points.
This works nicely as a public game match in TF, but I think it could work nicely if you just got to have an intermission, atleast keep the active players busy. It can even be played one on one. Sometimes those intermissions lose players.
http://www.sd.ru/subdomains/clan//maps/k/kotc.zip