Hide and Seek - People find you after you give them some clues, you give them a reward.
RUN2DAHILLS!! - Get a map that have like only one way to go to the other corner of the map and have aggressive monsters and /memo it. Ask people to make novices lv 1 without no gear and tell them to go to the start of the map[by entering your warp of course], get 1-2 trustworthy friends to try to stick with the mob of players while you double a Paladin/Lord Knight without any problem at the end of the course. Let people try to get to the end of this madness and RUN2DAHILLS to be saved by the awesome Paladin/Lord Knight there.
THE BOOGIE MAN IS COMING TO GET YOU!! BE AFRAID!! Because now he's a good man ): - Tell people to hide in a town with lots of houses. You go to a random house and bam, BOOGIE MAN GOT PEOPLE!! and they will get rewards =P
Last Men Stand, The Best of PvP - People fight at PvP and the last man alive wins.
Break the code? - Make a Private Chat with a Password that players have to unlock, first to decipher it wins.
Porings are EVIL!! They ate ma loot!! - Get some okish loot from random MVPs and drop them on a map with porings to eat them[1 item per each part of the map], people kill the porings and get the items as rewards.
Numero Uno Duel Masta!![No, not that even if I kinda like the japanese anime version of it, the USA version is super lame >>] - Get a bunch of people and make @duel in town. Since is in town everybody needs to be aware that the map has their own problems and enemies like people AFK, warps, etc. Wins the best of all duels.
MVPS ARE DRUNK!! HALP ME!! - Get a bunch of BB[if they're easy to get ofc, if not you can try to do this by abra and then lure them together but ofc you would need a map that is not useless by anybody or really few people go there] and release them on a map, then /memo that place and do the event of everybody vs the MVPs for loot and exp. Doing this with a HP to res everybody for more joy and fun will be better.
Fight Club, Noob Edition - PVP all with Novices lv1 with noob ground gears, last men alive wins! Ofc you would need to make sure that everybody would be with equips to be seen and nobody would use potions so it would be the best noob build and strategy would win.
GVG FUUUN - Make a schedule, like after WoE and get guilds to fight each others like a tournament.
BET & WIN[not that >>] - Get like 10 people[that you can trust that aren't biased which is kinda hard sometimes... maybe you can give them a % of the big bulk to get the players join this lol or just get some random PVP Whores that hate others a lot and give them an incentive to fight more EUEHUEHEU] and make them fight each others, others bet on the winner like 20k each one, winners take the all/number of winners. If the winner is just one you could always give an item as an extra reward I guess.
Hocus Pocus, Killer Edition Mode - Get a bunch of people on a PvP room or everybody in a massive @duel[invite everybody, then after that just tell everybody to accept so everybody are in the duel] and just do Abracadabra one by one, people get hit by a skill or die by one mean they're out of the event.
Riddles - Make a random riddle at @main and tell that the first to answer right wins a prize. Having /exall in a alt+number key to block pms after first right pm helps a lot to detect the winner!!
Forum Events like a best wallpaper of the month, best card idea of the month, best avatar/signature of the month aren't bad too, guess the card by showing a part of a card is cool too and even a Guess the answer of this challenge are fun if the challenge is always different and net and hard to get the solution.
Probably someone have better ideas, this are the ones I got just now after thinking a bit and that don't need GM powers ofc.
