Requires the library mod Collective.

This mod is part of The Vanilla Experience modpack and Serilum's Extra Bundle mod.
April Fools adds various silly and fun features and game mechanics to the game. By default they are automatically enabled only on the 1st of April. But feel free to enable them on all days via the config. There is a global toggle, and you can enable/disable all the individual features as well. The mod will hopefully add a few smiles on the faces of anyone who plays your modpack and/or server!

Features:
• Players will sleep with their feet on the pillow.
• The wandering trader will spawn with donkeys instead of llamas.
• Make cats bark and wolves meow.
• Cows have a chance to give a water or lava bucket when milked.
• Creepers might, instead of explode, launch a firework rocket with a creeper pattern.
• Make all potato drops from the potato plant poisonous.
• Skeletons can spawn with a sword and shield instead of a bow.
• Any normal arrow fired from a bow has a chance to have a random potion effect. When picked up, it's a normal arrow again.

Configurable: ( how do I configure? )
enableOnlyOnApril1st (default = true): If the april fools features should only be enabled on April 1st. If set to false, they will always be enabled.
april1stChanceMultiplier (default = 0.0, min 0.0, max 1000.0): Can be used to increase the chance of features happening on April 1st. So for example you can set 'enableOnlyOnApril1st' to false, 'chanceCreepersExplodeIntoFireworks' to 0.01 and 'april1stChanceMultiplier' to 25.0. This way a creeper would 1/100 launch a firework rocket outside of April 1st, and 1/4 on April Fools' day.

makeCatsBarkAndDogsMeow (default = true): If cats should bark and dogs should meow.
makePlayersSleepWithFeetOnPillow (default = true): If players should sleep in beds the opposite way, with their feet on the pillow.
makeWanderingTraderSpawnWithDonkeys (default = true): If the Wandering Trader should spawn with two donkeys instead of llamas.
chanceCowGivesDifferentBucket (default = 0.2, min 0.0, max 1.0): The chance that a cow gives, instead of a bucket of milk, a bucket of lava or water. Set to 0 to disable.
chanceCreepersExplodeIntoFireworks (default = 0.5, min 0.0, max 1.0): If creepers should, instead of exploding, spawn a firework rocket with a creeper pattern. By default a 50% chance. Set to 0 to disable.
chancePotatoCropDropsPoisonous (default = 1.0, min 0.0, max 1.0): The chance a potato dropped by a potato plant should be made poisonous on harvest.
chanceSkeletonHasSwordAndShield (default = 0.25, min 0.0, max 1.0): The chance a skeleton spawns with a sword and a shield instead of a bow. Set to 0 to disable.
chanceNormalArrowFiredHasRandomEffect (default = 0.33, min 0.0, max 1.0): The chance an arrow fired by a player has a random potion effect attached to it. Set to 0 to disable.

Video Showcase:

Examples:
The wandering trader has left its llama's at home, and brought two donkeys instead!

Creepers have a 50% chance to not explode, and launch a firework rocket instead!

Players and Villagers sleep with their feet on the pillow!

Works in first-person view as well:

Skeletons have a 25% chance to spawn with a sword and shield!

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You may freely use this mod in any modpack, as long as the download remains hosted within the Modrinth ecosystem.

Serilum.com contains an overview and more information on all mods available.

Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!

April Fools

External resources

Project members

Technical information