A NeoForge chaos mod firing random events at regular intervals — 81 happenings across 4 tiers, unlocked by exploring the Nether, the End, and the Deep Dark. No two sessions will ever feel the same. Actively in development.

🌀 What is Happenings?

Happenings fires random events — called happenings — at regular intervals, independently for each player. The further you explore the world, the stranger and more powerful the events that can befall you. From blizzards and blood moons to alien invasions and Herobrine sightings, chaos is always just around the corner.

The mod features a dual scheduler: normal happenings fire on a configurable per-player timer, while weather happenings trigger automatically at dawn and dusk with a configurable chance — keeping the world feeling alive at all times. Only one weather can be active at a time, and the last 3 weather events are remembered to prevent back-to-back repeats.

⚠ This mod is actively under development. New happenings, balance changes, and features are regularly added. Some happenings may be temporarily disabled or incomplete between versions.

🔓 Progression System

Happenings are gated by exploration. New tiers unlock as you venture further, ensuring early-game players aren't overwhelmed while veterans face increasingly unhinged chaos.

Tier	Unlock Condition	Count	Description
Tier 1 🌿	Available from the start	55	Quirky and mostly manageable
Tier 2 🔥	Visit the Nether	22	Danger starts to ramp up
Tier 3 🌑	Visit the End	4	Rare and powerful events
Tier 4 💀	Visit the Deep Dark	1	The rarest, most extreme happening

Each player's progression is tracked individually and persists across server restarts.

🌦 Weather Happenings

Weather happenings affect the entire server and trigger at dawn (day events) or dusk (night events). Only one weather can be active at a time per phase. The last 3 weathers are excluded from the random pool to prevent repeats. All weather events properly detect sleep and /time set commands to end early and cleanly release the weather slot.

ID	Name	Phase
`blizzard`	❄ Blizzard	☀ Day
`blessed_day`	☀ Blessed Day	☀ Day
`eclipse`	🌑 Solar Eclipse	☀ Day
`fertilizing_rain`	🌱 Fertilizing Rain	☀ Day
`firestorm`	🔥 Firestorm	☀ Day
`fog`	🌫 Dense Fog	☀ Day
`gange_water`	☣ Polluted Waters	☀ Day
`ramadan`	🌙 Ramadan	☀ Day
`slime_rain`	🟢 Slime Rain	☀ Day
`windy`	💨 Windy	☀ Day
`acid_rain`	🌧 Acid Rain	☀ Day
`thunder_storm`	⛈ Thunder Storm	★ Any
`blue_moon`	🔵 Blue Moon	🌙 Night
`easter`	🐰 Happy Easter	🌙 Night
`blood_moon`	🔴 Blood Moon	🌙 Night
`moon_gravity`	🌕 Moon Gravity	🌙 Night

⚡ A Taste of What Awaits

🌧 Acid Rain · 👽 Alien Invasion · ❄ Blizzard · 🔴 Blood Moon · 💥 Boom! · 🌀 Confusion · 🌍 Earthquake · 🌑 Eclipse · ⚔ Excalibur · 🔥 Firestorm · 🌫 Fog · 👁 Herobrine · 💣 Landmines · 🎁 Loot Box · 👺 Loot Goblin · 🧲 Magnetic · ☢ Radioactive Fallout · 🍺 Drunk · 🐝 Bee Swarm · ☀ Blessed Day · 🎯 Stealth Mission · 🌱 Fertilizing Rain · ⛏ Excavator 2000 · 🪆 Protect Him · 🌧 Depression · 🟢 Slime Rain · ⛈ Thunder Storm · 💀 Wither Landing · 🔄 Reversed Gravity · 💨 Oxygen Excluded · 🐰 Happy Easter · 🔴 Blood Moon · 🌙 Ramadan

...and many more. 81 happenings in total, with more added regularly.

💬 Commands

All commands require operator permission (level 2).

Command	Description
`/happening list`	List all happenings with their IDs, tiers, and weather phase
`/happening <id> [player]`	Trigger a specific happening on a player
`/happening random [player]`	Trigger a random happening from the player's unlocked pool
`/happening progress [nether\|end\|deepdark]`	Manually grant a progression unlock
`/happening admin time status`	Display current scheduler status (interval, weather chance, active weather)
`/happening admin time normal <minutes>`	Override the normal happening interval at runtime (persists across restarts)
`/happening admin time weather <percent>`	Set the weather happening trigger chance, 0–100 (persists across restarts)
`/happening admin time reset`	Restore values from the config file
`/happening admin disable <id>`	Disable a specific happening
`/happening admin disable list`	List all currently disabled happenings
`/happening admin enable <id\|all>`	Re-enable a disabled happening, or all at once

Runtime overrides set via commands (interval, weather chance) persist across server restarts — they are saved to the world's data storage and restored automatically on startup.

⚙ Configuration

Happenings generates a happenings-server.toml config file in your world's serverconfig/ folder.

Key	Default	Description
`enabled`	`true`	Enable or disable the entire Happenings system
`intervalMinutes`	`15`	How often (in minutes) a non-weather happening fires per player
`weatherTriggerChance`	`50`	Chance (0–100) that a weather happening fires at dawn or dusk
`allowInNether`	`true`	Allow happenings to trigger in the Nether
`allowInEnd`	`false`	Allow happenings to trigger in the End
`tier1Weight`	`50`	Relative draw weight for Tier 1 happenings
`tier2Weight`	`30`	Relative draw weight for Tier 2 happenings
`tier3Weight`	`15`	Relative draw weight for Tier 3 happenings
`tier4Weight`	`5`	Relative draw weight for Tier 4 happenings
`devIntervalSeconds`	`0`	Dev override: fire happenings every N seconds (0 = disabled)

✔ Features at a Glance

81 unique happenings across 4 difficulty tiers
Per-player progression — each player unlocks tiers independently
Dual scheduler — normal happenings on a per-player timer, weather events at dawn & dusk
Anti-repeat system — last 3 normal happenings and last 3 weather events excluded from the pool, persisted across restarts
Sleep & time-skip aware — all weather events properly end when the player sleeps or skips time, and cleanly release the weather slot so a new one can be launched immediately
Fully configurable — weights, intervals, dimension toggles, all adjustable in-game or in config
Persistent runtime settings — interval and weather chance overrides survive server restarts
Admin commands to trigger, disable, list, or force any happening at runtime
Client-side effects — screen shake, fog, sky overrides, mouse lock
Blizzard surface-only snow — snowfall visuals only render at sky-exposed positions, not underground
Moon Gravity — Jump Boost V + Slow Falling for the entire night, active by default
Full localization — English & French included out of the box, all messages translated
Works on dedicated servers, LAN worlds, and singleplayer
Under active development — more happenings and features on the way

Created by Tsunshun · Built for NeoForge 1.21.1 · Actively in development