OneLife
by AlessioDC
OneLife adds a toggleable Hardcore system to Forge worlds for 1.20.1, letting players switch Hardcore mode on and off without restarting the world.
What it does
When Hardcore is enabled, a player who dies is eliminated instead of respawning normally. The mod adds a OneLife command that switches players out of Hardcore, revives eliminated players, grants the OneLife status to other players and removes the OneLife curse from a player. These actions let a server owner or an operator adjust a run during play, and the command works in a running world.
The mod includes several custom items, among them a OneLife Sword that players can craft. The recipe becomes available only after the gamerule that enables it is turned on, so server owners control when it appears. Servers that run it need every player to install it too. Files are published for Forge only, for Minecraft 1.20.1 alone, with 1.0.0 as the latest file from 2026-04-15.
Key features
Toggleable Hardcore
Hardcore mode can be turned on or off inside a world that was created without it.
OneLife command
An operator command moves players in and out of Hardcore, removes the curse, revives eliminated players or grants the status.
Custom items
Several custom items are added, including a OneLife Sword that can be crafted once the matching gamerule is enabled.
Eliminated player revival
Players who were eliminated can be brought back with the command, so a run does not have to end for good.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Hardcore Revivestone is a Forge mod for 1.20.1 that runs on client and server and is released under All rights reserved, so its code is not freely redistributable. Remove my Curse! is also Forge only for 1.20.1, with the same client and server environment and All rights reserved licensing. Craft Plus + is again a Forge build for 1.20.1 on client and server, and its license is All rights reserved. OneLife covers Hardcore toggling together with the curse and revive actions, while these three cover narrower parts of that set.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| OneLife | Forge | 1.20.1 | Client and server | 2026-04-15 |
| Hardcore Revivestone | Forge | 1.20.1 | Client and server | 2025-07-31 |
| Remove my Curse! | Forge | 1.20.1 | Client and server | 2025-03-02 |
| Craft Plus + | Forge | 1.20.1 | Client and server | 2025-05-18 |
Questions
Does OneLife need to be installed on the server?
Which Minecraft versions does OneLife support?
How is the OneLife Sword crafted?
Is OneLife's code freely redistributable?
In the catalog
OneLife is one of 17,631 Equipment mods on ModsFinder, and one of 9,216 Equipment mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from AlessioDC
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What the author says
Adds a fully toggleable Hardcore system to any non‑Hardcore world. This mod introduces the /onelife command, letting you switch players into or out of Hardcore on the fly without restarting the world.
Official listing
- Modrinth page
- modrinth.com/mod/oneheart
- Owner
- AlessioDC
- Published
- 2026-04-15
- Updated on Modrinth
- 2026-04-15
- Facts verified
- 2026-10-15