Since 1995 or so I have more or less been the eternal DM. Back in the 90's we decided to do something that was kind of stupid even by out standards. We thought we would try a high level game with the kid gloves pulled off. The TSR era handbooks of the time had advice on who to do things like a fighther, thief, wizard type game. We picked a wizard each starting at level 19 as we almost never got that high. AD&D characters kind fof ran into massive xp tables for the higher levels and advancement was slow.
Our archmage party was run by the players sharing the DM role. Sometimes we had no DM and ran it by consensus among the players. Since we were all deliberately trying to be munchkins and breaking the game we had a no holds barred approach. For the most part this meant we could all pick our spells and magic items from the Encyclopedia Magica and spells from the Priest and Wizard spell compendiums. From memory there was some sort of limit as to what we could actually pick. The other players all went for the nastiest combat spells they could fins. My spell of choice was Stasis Clone a level 9 clone spell variant Manshoon uses in the Realms to not die. 25 years of Dragon and obscure books worth of magic items and spells. Wish was also one of my picks.
Between the group we also had a large selection of the TSR campaign settings. In the anything goes mentality lets break this game and have some fun we let almost everything in. Between us we had the boxed sets for Birthright, Darksun, Dragonlance, FR, Mystra, Planescape, Ravenloft, Red Steel, Spelljammer etc. We had most of them anyway. My personal abuse rule of choice were the magical potions as fruit from Darksun and similar rules. While the other players loaded themselves up with combat related magic items I choose a suitable large selection of potions of longevity in fruit form.
Since the game was a broken game of archmage skulduggery we all done what any mad wizard would do. We each created a lair. I needed somewhere safe to store my magical fruit trees as I wanted to have a farm supplying potions of longevity for wish spell abuse. The others created towers, a dungeon complex, a magical Inn and a downed Spelljammer ship as lair. My lair oh doom was a prismatic sphere made permanent on the elemental plane of fire. Another wish spell created a bubble inside it with no elemental matter. 4 Mordenkainens magnificent mansion spells where created and 3 of them had permanent prismatic walls put on the other aide of them for any unwelcome visitors. The mansions were made permanent via wish spells. The 4th was equipped as a nice comfy inn for visitors. A modified spell engine spell was put in the lobby to suck up any magic spells cast with a few golems as well. The other 3 mansions were turned into magical hot houses and my personal lab for mad bwa ha ha wizardo experiments. One generally needed a wizard, ranger or druid to tend you magical fruit trees. A few simulacrum spells took care of that problem. A personal extra dimensional army was created which meant several hundred level 6-10 wizard simulacrums IIRC.
Anyway all of these potions were used to fuel unlimited wish spells and stasis clone spells were used to keep one alive. We did not do that much adventuring as such as we were all to busy plotting off how to kill one another in various amusing ways. The more or the top and creative ways of doing it were rewarded. Ambushed and spell duels involving initiative rolls were just so uncreative. My wizards 1st death involved a flunked saving throw vs a troll shamans hold person spell and the other PCs though it would be humorous to teleport off. Level 19 wizard becomes troll food and stasis clone kicks in.
Sooner or later the other players kind of figure out that in effect I can cast unlimited wish spells. They try the frontal assault and actually manage to deal with the spell engine and golems trick. It takes them a moment to to figure out where the mansions are. One of the other archmages promptly dies after walking through the door into a prismatic wall and they manage to get through that. It turns out that 5 archmages cannot deal with over a hundred simulacrums battling it out in a reverse gravity prismatic wall minefield.
The most creative PC on PC death involved the Inn lair which was more or less just an inn. The innn owner invited a local tribe of orcs to come by for free ale. The orcs thought it was a good idea because option B was 6 archmages using cloudkill spells on their lair. Anyway it was rather messy affair as orcs do. His goal however was to have a full latrine. I'm not sure what the most humiliating death in D&D is but getting hit in the butt via a glyph of warding power word liquefy spell as you do your business is probably one of them. Once you get turned into water while doing your business on the porcelain throne and landing in orc bodily fluids is probably right up there though.
We were young, stupid and went out of our way to break the game no sane DM who was sober and capable of speech would allow via unlimited access to splats and campaign setting material. In a way it was balanced though as we were all wizards and it was like playing Type 1/Vintage magic the gathering with the power 9 in play. Everyone has it so it is fair. Overall it was broken as hell, entertaining and it kept us amused for a few afternoons as it was a disposable campaign of madness. The moral of the story is do not let any and all splats and campaign setting material into the game and be very careful with spell compendium type books.
Screams of pain from the balance brigade in 3,2,1.......
I wonder if they will make a complete book of munchkins for D&DN. Since it is suppose to be inclusive an support all playstyles. On very rare occasions throwing the rulebook and sanity out the window can be fun.
Fear is the Mind Killer