Extremocore
by Vnxsitoow
Extremocore gives Forge 1.20.1 servers a hardcore event setup in which each player starts with 5 lives and loses one on death.
What it does
A player who reaches 0 lives is switched to Spectator mode and respawns from there. Lives carry over between sessions, deaths and server restarts, and a life that was lost can still be won back. Zombies, skeletons, creepers and spiders keep their vanilla appearance and base behavior, while the mob combat is tuned so that mobs burn, die in fire or lava, or take sunlight damage faster, which suits fire-themed arenas.
The mod targets competitive and event-driven servers. Admins can switch player-versus-player damage on or off server-wide with a command, and creeper explosions can be toggled separately. Both changes give players a centered on-screen image and an audio cue, so a round start or a surprise PvP phase is announced without flooding chat.
Extremocore is client and server, so the server and every player need it. It is published for Forge only, with 1.0.0 for 1.20.1 as the sole file, and is released under All rights reserved, so it is not open source.
Key features
Five-life system
Every player begins with five lives, displayed as hearts along the top of the screen, and each death takes one away.
Server-wide PvP toggle
An admin command turns player-versus-player damage on or off for the whole server at once.
Creeper explosion control
Creeper explosions can be switched on or off, and the toggle is available to admins as a live control.
Status and alert display
Each PvP switch brings up an image in the middle of the screen, and the current PvP state remains shown beneath the hearts until the next change.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Hardcore event servers
Event hosts run timed rounds where each player has limited lives and the round ends when lives run out.
Fire-themed arenas
Vanilla mobs that burn or die in fire and lava make arenas where mob damage depends on the terrain.
Who it’s for: Server owners and admins who run hardcore or PvP events on Minecraft Java Edition 1.20.1 with Forge, and who want lives, PvP control and visual alerts managed from the server.
How it compares
Creeper Insta BOOM also changes creepers for Forge 1.20.1 and can run on a client or a server, but it is not open source and is under All rights reserved. No Creepers is server required with optional client support, also for Forge 1.20.1 and All rights reserved. Extremocore covers lives and PvP rather than creeper behavior alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Extremocore | Forge | 1.20.1 | Client and server | 2026-07-18 |
| Creeper Insta BOOM | Forge | 1.20.1 | Client or server, optional | 2026-05-10 |
| No Creepers | Forge | 1.20.1 | Server required, client optional | 2025-08-28 |
Questions
Does Extremocore have to be installed on both sides?
Which Forge version does Extremocore need?
Are lives kept after a server restart?
In the catalog
Extremocore is one of 11,058 Mobs mods on ModsFinder, and one of 6,527 Mobs mods for Forge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
A Forge 1.20.1 mod built for hardcore event servers — limited lives, buffed vanilla mobs, live PvP control, and a visual alert system for admins. Every player starts with 5 lives, shown as hearts at the top of the screen.
Official listing
- Modrinth page
- modrinth.com/mod/extremocore
- Owner
- Vnxsitoow
- Published
- 2026-07-18
- Updated on Modrinth
- 2026-07-18
- Facts verified
- 2026-10-15