Bloodmoon Rebrushed

The Bloodmoon event occurs on a night with a 5% chance, and the rise of the red moon is configurable. While it lasts, surface monsters spawn about four times as often. Players can sleep through a Bloodmoon if the option is enabled. The sky, sky light and fog take on a red tint, and the moon turns black for a darker effect. The mod runs on client and server, so both sides need it. Forge and NeoForge builds cover 1.20.1 and 1.21.1, and the code is released under CC0 1.0 Universal, which is not open source.

Inspired by Lumien231's Bloodmoon mod, the event follows its original idea and adds its own settings. The surface mob boost and the sleep option can each be adjusted in the config, so server owners decide how often the event hits and how hard it is.