Put in different game type things, like you can choose different play styles. One you get 10x the rs exp this could be called master and you will have the tag master beside your name. Then another one that is 50x rs exp called maybe extreme and then one that is 250x rs exp called maybe supreme and then the lowest one that is 1000x rs exp called noob.

The harder the game mode you play on the more benefits you get, for example: master starts with a weapon that has a high hit rate and only master characters get them, they also have infinite prayer in pvm and pvp, they also have a higher drop rate for rare items compared to other play styles. Extreme could also have a armor or weapon only for them, they also have a higher chance at rare drops but not as high as master, they also get infinite prayer in all pvm fights but not pvp. Supreme characters should get a bit higher drop chance and that's all. Finally the noob class should get no benefits and have lower damage than the rest of the classes.

Please post your opinions on this. Thanks <3