Coolest Hardcore
by Rumaruka
Coolest Hardcore changes the rules of a survival world so that dying ends the run, with undead and arthropods taking damage only from enchanted swords.
What it does
Coolest Hardcore is a survival mod for Fabric, Forge and NeoForge that turns a world into a true hardcore mode. Settings are locked after the world is created, so the game mode and difficulty cannot be changed later, and the remove command is taken out of the picture. Players take damage for five seconds after a hit and lose two hearts, which makes fights much tighter. Undead mobs can be hurt only by a sword enchanted with Smite, and spiders, silverfish and endermites only by a sword enchanted with Bane of Arthropods.
The mod is built for players who find vanilla hardcore too lenient and want a stricter run. It works with other mods, and it adds its own items and blocks, apart from one sound taken from Doom 3. Coolest Hardcore is client and server, so the server and every player need it. It is released under the MIT License and is not open source, with files published for 1.20 – 26.3.
Key features
Locked hardcore settings
Game mode and difficulty stay fixed once the world is created, and the remove command cannot undo that choice.
Smite-only undead damage
Undead mobs take harm only from a sword enchanted with Smite, so ordinary weapons stop working on them.
Bane of Arthropods requirement
Spiders, silverfish and endermites take damage only from a sword enchanted with Bane of Arthropods.
Delayed damage penalty
Taking a hit causes five seconds of damage that drops health by two hearts, raising the cost of every mistake.
Compatibility
Latest build for each game version and loader.
26.x3 of 3 versions with builds
1.21.x12 of 12 versions with builds
1.20.x6 of 6 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Enhanced Mobs runs on Fabric, Forge, NeoForge and Quilt for 1.21 – 26.2 and is server required, under the MIT License. Beter Ultra Hardcore is open source under the MIT License, server required, and covers 1.20 – 26.3 on four loaders. Hardcore Mode 2.0 is also a client and server mod on Fabric, Forge and NeoForge for 1.20.1 – 26.1.2, under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Coolest Hardcore | Fabric, Forge and NeoForge | 1.20 – 26.3 | Client and server | 2026-09-19 |
| Enhanced Mobs | Fabric, Forge, NeoForge and Quilt | 1.21 – 26.2 | Server required, client optional | 2026-06-17 |
| Beter Ultra Hardcore | Fabric, Forge, NeoForge and Quilt | 1.20 – 26.3 | Server required, client optional | 2026-09-19 |
| Hardcore Mode 2.0 | Fabric, Forge and NeoForge | 1.20.1 – 26.1.2 | Client and server | 2026-04-30 |
Questions
Does Coolest Hardcore need to be installed on the server?
Which loaders does Coolest Hardcore support?
Can a sword deal damage to undead without Smite?
In the catalog
Coolest Hardcore is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Rumaruka
Similar mods
What the author says
Let's be honest! The hardcore game is boring and uninteresting, so I decided to diversify this game with small changes. I call it - true hardcore mode for the game! After create world, mod already sets the right settings (GameMod - Survive, Difficulty - Hard). It doesn't matter what settings you set when you created…
Official listing
- Modrinth page
- modrinth.com/mod/coolest-hardcore
- Owner
- Rumaruka
- Published
- 2023-06-09
- Updated on Modrinth
- 2026-09-19
- Facts verified
- 2026-10-15