Essential Core
by Nighttie
Essential Core is a NeoForge server mod that records and restores player inventories, chunks and block changes through commands and an inspector.
What it does
The mod runs only on the server, so players join without installing anything. It logs block breaks and placements, container openings, item pickups and drops, commands, logins and logouts, dimension changes, and entity kills, writing each category to its own file under essential-core/events. Periodic backups keep copies of player inventories and chunks, and rollbacks restore a player or a chunk from those copies through commands, with an undo that reverts the last rollback.
Log work runs on background threads so the server does not stall while entries are written. Logging categories, the thread count and command filters are set in config.toml. Log history is read with an interactive inspector that paginates results and uses clickable buttons for navigation. Essential Core requires NeoForge and is published for 1.21 – 26.1.2 under All rights reserved, with 6.0.0 as the latest file for 26.1.2.
Key features
Action logging
Block breaks, placements, container openings, commands and session events are recorded with the player, date and category.
Inventory and chunk backups
Player inventories and chunks are backed up on a schedule, and offline player ender chests can be opened for inspection.
Rollback and restore
A player or chunk can be restored from a backup with a command, and the last rollback can be undone.
Log inspector
Recorded history is browsed with pagination, clickable navigation and subcommands that filter by mode.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners and administrators who want a record of player actions and the ability to roll back damage. Players on the client do not need to install the mod.
How it compares
CervLogger is also server-side only, open source under the GNU Affero General Public License v3.0 only, and published for 1.21.1, so it covers a narrower version range. Bookshelf Inspector is open source under the MIT License and runs on both client and server for Fabric and NeoForge, 1.21 – 26.3. Log Sifter is open source under the MIT License, published for 1.21.1 only, and works on either side, and neither side needs it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Essential Core | NeoForge | 1.21 – 26.1.2 | Server-side only | 2026-05-30 |
| CervLogger | NeoForge | 1.21.1 | Server-side only | 2026-07-20 |
| Bookshelf Inspector | Fabric and NeoForge | 1.21 – 26.3 | Client and server | 2026-09-23 |
| Log Sifter | NeoForge | 1.21.1 | Client or server, optional | 2026-04-18 |
Questions
Does Essential Core need to be installed on the client?
Which loader does Essential Core use?
Where are the logs stored?
In the catalog
Essential Core is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 15,189 mods support Minecraft 26.1.2.
More from Nighttie
Similar mods
What the author says
• Open Inventories, Ender Chests, and offline player ender chests. • Performs periodic backups of player inventories and chunks
Official listing
- Modrinth page
- modrinth.com/mod/essential-core
- Owner
- Nighttie
- Published
- 2025-11-19
- Updated on Modrinth
- 2026-05-30
- Facts verified
- 2026-10-15