
april-legacy
A mod bring back multiple April fool function into Minecraft
Screenshots

About this Mod
April's Legacy
April's Legacy is a high-performance Fabric mod for Minecraft 1.21.1 that reconstructs and expands upon the unique mechanics introduced in April Fools snapshots. This project brings back the complex voting system, lunar dimensions, and various experimental features with a heavy focus on modern performance and technical compatibility.
Features

Voting System
The core mechanic of the mod is a fully functional, server-wide voting system.
- Dynamic Vote Generation: Randomly proposed rules affecting gameplay, physics, and world generation.
- Vote Manager: A centralized system to handle pending, active, and finished votes.
- Custom Rule Implementation: Includes classic rules like "Moon Gravity," "Big Moon," and unique block/item replacement rules.
- Hacker Protection: Re-implementation of the "Hacker Vote Rule" as a specialized easter egg and anti-cheat mechanism.
Content & World Gen
- Lunar Dimension: Explore the Moon with custom biomes and crater features.
- Moon Lab: Procedurally generated structures found in the lunar dimension.
- New Entities: Including the Moon Cow and other specialized mobs adapted for low-gravity environments.
- Custom Blocks & Items: Features like Cheese Blocks, Void Bottles, and various technical blocks.
Performance Optimizations
Designed to handle thousands of entities and complex rendering scenarios without lagging the client.
- Optimized Shadow Rendering: Re-engineered shadow calculation using heightmap sampling to eliminate redundant CPU cycles.
Technical Architecture
- Codec-Driven Rules: Utilizes Mojang's Serialization API for robust rule synchronization.
- Fabric Networking: Optimized packet handling for real-time vote state syncing.
- Data-Driven World Gen: Modern registry systems for biomes, features, and structures.
Commands
/vote pending start: Propose a new random vote./vote rule <rule> approve: Manually apply a specific rule./vote rule <rule> repeal: Remove a currently active rule./vote dump_all: Output all registered rules and their current states to the console.
Credits
Certain portions of the logic and implementation are based on the original Minecraft april fools versions codebase by Mojang Studios. These features have been reverse-engineered, refactored, and optimized for the modern Fabric 1.21.1 environment.
Available Versions
How to Install april-legacy on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "april-legacy". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
april-legacy server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is april-legacy compatible with fabric?
april-legacy officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with april-legacy – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if april-legacy consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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