
From the ancient time in antiworld story the two teams, Evil and Good fight an unending capture the flag battle. To prove their supremacy the mercenary must possess all the two flags at same time. The mages and warriors involved in the battle are of any different class and level, but they are going to prove their power fightin versus enemies of the same level. They feel no glory by kill inexperienced fighter, but they also feel no pity versus who touch their flag.
Here the npc that holds the flag in one of the ctf arena areas.

Here, is nice Pic of a weird duel in the desert arena of the ctf. As you know, in Antiworld arena players are supposed to fight only VS others player that are at the same level, or a level near. This limit is called Kill Range and is from -5 to +5 levels around your level.
To punish who don't respect this rule, we polimorph them to a penguin, so to allow other lowbies to kill them easily and as a revenge. So the penguins in the pic are players that have just killed an Effortless [effy in AW slang] . The other were carring the flag.. but they also are dead...

The good castle, where players involved in good team can rest and shop. Some items in the shop are from the original nwn standard items, some other are custom of antiworld ctf builders.
You can see the Big sign in the middle of the room, the sing shows the list of all players involved in the ctf battle, divided in two groups: the evils and the goods. It also shows the level of each player so to allow everyone to figure out who are going to be their adversaries in the battle.
This is the Frappr Map of Antiworld Players Community: