Hearths
A handful of additions to vanilla Nether biomes
Screenshots
About this Mod
🔥 About
Hearths is a light data pack that adds new features and structures to the vanilla Nether. It improves three vanilla biomes: the Nether Wastes, the Crimson Forest, and the Warped Forest. It also adds two new structures: the Crimson and Warped Towers.
📦 Content
The Nether Wastes were mainly upgraded with two new features - netherrack spikes (or rather stalagmites and stalactites) as well as blackstone and magma 'lakes'. This transforms the wastes into less of a desert-like biome and more of a hostile cave-like biome.
The Crimson Forest and the Warped Forest now include blackstone rocks, fallen fungus stems, and a new, weird type of sprawling huge fungus. The density of vegetation has also slightly been increased.
On top of that, the forests now also include two new structures - the Crimson and Warped Towers. These not only provide loot and mobs, but being very tall (almost a 100 blocks), they can also serve as 'elevators' between the different vertical levels of the Nether!
📋 Notes
This data pack should be compatible with mods and data packs that change Nether generation, such as Amplified Nether. It is not fully compatible with ones that change the biome files of changed biomes. The towers should always spawn, though.
Available Versions
How to Install Hearths on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Hearths". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+20 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Hearths 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 4 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.
Is Hearths compatible with datapack and fabric and forge and neoforge and quilt?
Hearths officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.10, 1.21.9, 1.21.8. 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 Hearths – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Hearths 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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Rent Modded Server
Install Hearths with just one click on your server.