So I heard you were talking crap about Minecraft's difficulty ?

Extension mod!
This one is required on client.

Description

This mod aims to increase Minecraft's difficulty. Basically, almost every hostile mob has been reworked, from small changes to huge ones. Some of them are inspired by the Bedrock edition, which is a bit different (and often harder) than the Java one. Although we've changed almost every mob already, feel free to ask for new features or changes in the comment section. Indeed, don't hesitate to share your experience and tell me if you think I should tweak anything to make the experience even better =)

FAQ

• Does it work on a server?
  Yes, it works on a server. File needed for both client and server for full functionalities. Can be server-side only if you deactivate some features (see the Wiki)

• Can I include it in my modpack?
  Yes, you are free to include this mod into your modpack

• For any other things:
  Feel free to share your experience, problems, enhancement ideas in the Discord server, or directly creating issues on the GitHub