globalevents

Events are triggered by chance, with a default 5% chance per half day, and each has a configurable duration. During an event, meteors rain around players and deal heavy damage; the number of meteors spawned is configurable, since very high counts can cause lag. Acid rain keeps the weather raining for the event's length, and standing under it poisons entities, with the poison duration and amplifier both configurable.

Other events change the environment directly. A strong gust pushes entities in a random direction chosen when the event starts, and its strength is configurable; the default is meant to be a challenge, and values set too high can make the game unplayable. A heat event raises the temperature until it is unlivable, and a cold event lowers it to freezing, with entities warming or cooling over time. Standing near campfires, torches or magma blocks keeps heat up, water submersion forms ice, and lava does not cool enough to freeze a player. A growth event doubles crop growth speed by modifying the randomTickSpeed game rule, and a thunderstorm event produces ordinary rain with more lightning.

The mod is client and server, so both the server and every player need it. It is published for Forge only, with its current build 1.0.6 for 1.20.1, released under the MIT License. The source is not open source.