Player Weight
by alfuwu
Player Weight gives each item in a player's inventory a weight, so carrying heavy stacks slows the player down.
What it does
Weight is set per item through a config file. A text field decides which items the modifier applies to, and the match can be checked against the item ID as plain text, as a regular expression, as an exact ID, or as a tag. Each rule sets a weight, and by default the rule multiplies the item's base weight. A setting switches this to adding the weight instead. Air can be excluded so empty slots add nothing.
Punishments are separate entries in the same config file. A punishment sets how much the player's speed is reduced once total weight passes a chosen fraction of the maximum, for example 90% of original speed above 80% of maximum. A scaling option makes the effect stronger the heavier the player is. Players can be slowed by carrying a lot of an item, and servers can tune the limits.
The mod runs on the server, and clients can join without it. Files are published for Fabric and Quilt, for game versions 1.19 – 1.20.4, and it requires Cloth Config API and Fabric API. It is open source under the MIT License.
Key features
Per-item weight
Each item or matched group of items can be given a weight that overrides its default in the inventory calculation.
Four matching modes
Items can be matched by plain text, regular expression, exact ID or tag, so one rule can cover a whole mod or group.
Multiplicative or additive weights
A config switch decides whether modifiers multiply the base weight or add to it.
Weight punishments
Entries set how far speed drops once carried weight passes a threshold, with an option to scale the effect by weight.
Compatibility
Latest build for each game version and loader.
1.20.x4 of 4 versions with builds
1.19.x5 of 5 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Survival pacing
Heavy materials such as stone or ore can be made to matter when a player carries large amounts.
Modded items
A single regex or ID rule can give weight to items from another mod, such as one heavy sludge item.
Who it’s for: Server owners and modpack authors who want carried weight to affect movement. Players can use it on a client, though the server side does the work.
Questions
Does Player Weight need to be installed on the client?
What does Player Weight require?
How are item weights matched to config entries?
In the catalog
Player Weight is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 13,907 mods support Minecraft 1.20.4.
More from alfuwu
Similar mods
What the author says
Player Weight is required on the server, and optionally the client. Below is the config entry that prevents air from adding weight to the user's inventory.
Official listing
- Modrinth page
- modrinth.com/mod/player-weight
- Owner
- alfuwu
- Published
- 2024-02-25
- Updated on Modrinth
- 2025-07-20
- Facts verified
- 2026-10-15