GeyserMC/Geyser

Custom Entity API non-vanilla entities

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#6,598 opened on Aug 7, 2026

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 (3 comments) (0 reactions) (0 assignees)Java (611 forks)batch import
Feature RequestHelp Wanted

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Description

What feature do you want to see added?

In the commit for the custom entity API feature #6010 the ability to use non-vanilla entities was removed: "Revert initial changes for supporting non-vanilla entities". I'm sure this was done for a good reason but could this functionality be brought back in a new branch for testing?

Are there any alternatives?

Currently (as of API 2.11.1) it is only possible to replace vanilla entities.

Contributor guide

Research direction
Review commit 8f6a9d2 and its revert to understand the rationale, then explore the current custom entity API to see how vanilla entity replacement works and what would be needed to support non vanilla entities.
Tech stack
java
Domain
backendapi
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitJava
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65