
KillFallingBlocks
A datapack that kills blocks that fall
About this Mod
This datapack kills the falling block entity. That is it. The falling block entity disappears with no drop. That's the only function of this datapack.
I made this datapack for the use case below.
Best Use Case: To lower the lag caused from superflat world full of sand falling from a block update.
Available Versions
How to Install KillFallingBlocks on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.5).
Install Mod
Open the mod browser in the dashboard and search for "KillFallingBlocks". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.5, 1.21.4, 1.21.3 (+14 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
KillFallingBlocks server crashes on startup – what to do?
Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.
Is KillFallingBlocks compatible with datapack and fabric and forge and neoforge and quilt?
KillFallingBlocks officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.5, 1.21.4, 1.21.3. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with KillFallingBlocks – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if KillFallingBlocks 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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Install KillFallingBlocks with just one click on your server.