Harder - Staged Difficulty

This mod is mainly for modpacks. It allows you to increase the difficulty of the game (stats of monsters spawned) for each player after they hit certain milestones (enter a dimension or kill an enemy). You can add and edit difficulty tiers as you like in the config.

Default config looks like this (may be changed in future updates):

[
   {"damage": 1.25, "health": 1.2, "exp": 1.5, "dimensions": ["minecraft:the_nether"], "message": "§6Expert mode entered!"},
   {"damage": 1.5, "health": 1.4, "exp": 2.0, "dimensions": ["minecraft:the_end"], "bosses": ["minecraft:wither"], "message": "§cMaster mode entered!"}
]

I think this is quite self-explanatory.
Numbers specified are multipliers - for example, zombies have 20 hp in vanilla, and they will have 20*1.4 = 28 hp as you reach the second difficulty.
All the parameters are optional.

You can manage player difficulties via commands /harder <get/reset> and reload config with /harder <reload>.

The mod is server-side, you don't have to install it on client.