@Error014:
The game needs statistics to visually compete
Imagine a big map, split in small squares. Each square represents a dungeon, when someon beats the dungeon, hist team(red/blue) optains the tile, can place an own dungeon on it and progress on the map :D(you can only enter a dungeon if its attached to one of your colors)

Goal?... mh crush enemies Castle?

After crushing, season end, big statistic table of participants, kill/death points etc and map reset for a next game.

So you could have random games(like now) and war(my idea above).
The last one truly gives some competetive aspects^^