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Debug Things

Adds many features for datapack developers as well as a few additional features for more complex behaviors.

Fabric
Loaders
Fabric
Downloads on Modrinth
280
Followers on Modrinth
0
versions
10
Updated
June 7, 2026Jun 7
Published
in 2025

At a glance

Runs on Fabric
For Minecraft 1.20.4
Needed in the game and on the server
Latest version — 1.0.11 from June 7, 2026
License CC0-1.0 — free
Where it's needed
In gamerequiredOn serverrequired

Needed both in the game and on the server

Game versions1.20.4

A suite of changes for datapack development to extend the limits of what datapacks can do.

Current Features:

- Crit Rework

Makes crits work on any sourced damage, having a multiplier and chance attribute. Replaces the vanilla system. You can enable this feature in the config, it is defaulted off.

- Inflictions

Work like effects but more modular and wide spreading, data driven might be added in the future. Has stack functionality and can deal with multiple sources, and custom combining mechanics.

- Commands

New commands, such as temporary blocks, motion, health, distance, radians from an xy, tick commands, and more.

- Function Tags

New usable function tags like tick and loading for many more purposes.

  • Entity death (Occurs before the actual death, so nbt can still be read) [debugthings:entity_die]
  • Join (A player can't see messages sent from this event, as they aren't fully in client side) [debugthings:join]
  • Respawn [debugthings:respawn]
  • Copy Player (Not sure on use case) [debugthings:copy_player]
  • Player Dimension Switch [debugthings:player_change_world]

- Attributes

Many new attributes, such as tool level, air speed, positive potion duration, negative potion duration, invulnerability ticks, dodge chance, parry chance and more.

- Effects

Not many are added due to the addition of the infliction system, however there are a few.

  • Rubber: Makes things bouncy like slime.
  • Wounded: Prevents healing.
  • Rot: Lowers max health.
  • Temporal Freeze: Freezes the entity completely, preventing most interactions.
  • Temporal Stretch: Slows entities tick rate down (does not work on players).
  • Temporal Compression: Speeds up entities tick rate (does not work on players).

Removing Potion Recipes

Just because I couldn't find another mod for this feature for this version. Simply add the potion identifier to the list in the config (such as "minecraft:swiftness" or "minecraft:strength_long")

NOTE: Currently it seems modrinth may install the wrong version of additionalentityattributes when installing this mod, so please check

Planned Features

Modular item features, modular entity features and abilities.

FAQ

How to install Debug Things?

Install Fabric for your Minecraft version, download Debug Things for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Debug Things support?

Debug Things has builds for Minecraft 1.20.4.

Is Debug Things needed on the server?

Needed in the game and on the server

License and source
Creative Commons Zero v1.0 Universalfree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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