I just had a brilliant idea. What if you had custom crafting recipes for items that you can normally only acquire by going to the end or the nether? Similar to -snip- UHC? Like, to get quartz, maybe surround an iron ingot with diorite? I don't really know how the crafting recipes would be structured, I just want to be able to access that content without resorting to asking cheaters for it. You could even solve the god item dilemma by making a REALLY difficult, but legitimate, way to get them. It wouldn't really be unbalanced, because it's not really a competitive game. You could also adjust the stats so that they're strong, but they don't crash the game upon killing a single enemy. This would de-incentivize hackers to hack the game, since that stuff could be achieved without it. But, if you were to do this, you'd need to make sure that you can't use negative potions against other players.