What about creating a server for dark age ?
Level cap : 9 or 12
Best armor : Leather armor Mk 2 ou Combat Leather Jacket
Small Gun : No sniper, no gauss, no p90...
Big gun : Only Flamer
Thrower : Only rocks, spears, knives and molotov
Energy : Only pistols
Melee : No ripper, supersledge or cattleprod
Vehicules : Only caravan, cockroach and scout
Bases : Only caves and trapper camp
Bank : no interrest
Followers : only slaves and animals
Caps : Acquirable only with job or encounters. Will disapear in trader inventory, even right after trade
Npc : Those with forbidden weapons won't be lootable or stealable.
So it would be constant post-wipe era, and the fans of this era won't bother here...