Only Old Boom Damage
Only Old Boom Damage stops explosions from end crystals, beds and respawn anchors from hurting entities, while the blocks themselves still break.
What it does
Explosions from end crystals, beds and respawn anchors no longer deal damage to entities, so players and mobs nearby are unhurt. Blocks in the blast area still take damage and can break as usual. Explosions from TNT, creepers, ghast fireballs and similar sources keep working normally, and the mod changes nothing about them. The mod is server-side only, so players join without installing it. It is published for Fabric on 1.21.11 with MIT-0 as the license, and it is not open source, though the source code and issue tracker are public.
Key features
Blocks still break
Terrain and blocks in the blast radius are still damaged by end crystal, bed and respawn anchor explosions.
No entity damage from those sources
Entities caught in explosions from end crystals, beds and respawn anchors take no damage from them.
Other explosions unchanged
TNT, creepers and ghast fireballs still damage entities as they do in vanilla.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Crystal Optimizer is a client-side only Fabric mod for 1.21.4 – 1.21.11 under the MIT License, so it runs on players' clients rather than the server. Zero Delay Crystals is also client-side only and covers 1.21.1 – 1.21.11 under the MIT License. Only Old Boom Damage is server-side only for 1.21.11, so players need nothing installed to join.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Only Old Boom Damage | Fabric | 1.21.11 | Server-side only | 2026-01-30 |
| Crystal Optimizer | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-09-01 |
| Zero Delay Crystals | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-07-30 |
Questions
Does Only Old Boom Damage need to be installed on the client?
In the catalog
Only Old Boom Damage is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
Stops explosions caused by end crystals, beds, and respawn anchors from damaging entities. Blocks will still be damaged, and explosions will still be caused. TNT, Creepers, Ghast fireballs, etc. will still work as normal.
Official listing
- Modrinth page
- modrinth.com/mod/onlyoldboomdamage
- Owner
- skycatminepokie
- Published
- 2026-01-30
- Updated on Modrinth
- 2026-01-30
- Facts verified
- 2026-10-15