I would say RPG's arn't as addicting though... actual RPG's anway because with an actual rpg, you play it for the STORY. The features just make you go "SWEET!" While the story makes your heart beat and your mind sprint

Bounds are pains in the asses, so people are addicted to them ONLY because they keep dying. So overall, they are irritated with the game but still want to beat it, and what do they get? Nothing but drum roll with a VICTORY and that was it... though yeah, the player won, but did they really feel that way o.O?
Defence maps work about the same way. So bascially, you have to incorporate a story in bound and defence maps or at least give it its own atmosphere. The most addictiing is probably games that players go against each other, but very well balanced and give players a lot more options then just MASS and OMG SEND THAT GODLY HERO THERE AND KILL EVERYTHING THAT'S NOT A HERO...
How about a map where you have to use both skill and strategy to beat another player? I mean, not sure if this has been used yet, what if it's a mind control war? It'll be like Paintball wars, but instead of just hoping your guy shoots first, you have to be alert to mind control anyone who comes your way. After mind controlling another player's DarkArchon, remove or kill it then that's a score for you. Make ramps and trees and hell, maybe a few fields like darkswarm and webs around the map and maybe even floating buildings for cover!
Sounds like a good game, no?
