Tell us what differs
Something that doesn't play like vanilla is a bug. Say what you did, what happened and what vanilla does, with your Horizon version and system.
HubNow, next and how to help
Where Horizon is going
What is being done, what comes next, what shipped and where you can help. No dates: things are Now, Next or Later. Read it in plain words, or switch to the technical picture.
{{HUB_OVERVIEW}}
{{HUB_AREAS}}
{{HUB_ROADMAP}}
Every open issue and pull request, placed by its state on GitHub, as on Kira's work board in Discord.
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Every release with what it changed, grouped by roadmap item in Technical, and a summary of each week. Also as journal.json.
{{HUB_JOURNAL}}
Good first tasks
Each one is a small difference from vanilla, with an issue that says how to see it.
Each links its issue; the technical text says where in the code and in vanilla to start.
- {{HUB_HELP_WANTED}}
Ways to help
Take a task
Pick a good first task or an open issue. On Discord, /claim 1234 tells everyone you are on issue 1234, so nobody starts the same work; /unclaim frees it.
Bring your AI agent
On Discord, /agent connect gives your coding agent a personal token for Kira's MCP server: it reads the work board, claims tasks and posts its progress in your name.
Benchmark your computer
Run the built-in benchmark and share the report: every new machine makes the performance work more accurate. No coding needed.
Report a bug
One bug per report: something that breaks, or doesn't play like vanilla. It becomes an issue on GitHub, public, and you get its link to follow it. Search the open bugs first.
Report it on GitHub or in #horizon-bugs on Discord, where Kira turns your post into an issue.
Suggest something
An idea for Horizon, or about something on the roadmap. The maintainers read every one, and the good ones become roadmap items. Nothing you send here is published.
Post it in #horizon-ideas on Discord, or send it to Kira with /suggest.
The rules
- Vanilla is the specification. Wherever Minecraft 26.3 has the feature, Horizon does exactly what it does: read vanilla's code, then match it.
- Small pull requests, proven. One change each, under about 500 lines, with the block
python3 tools/pr_ready.pyprints: formatting, Clippy, tests and the harnesses your change can affect. - Say who wrote it. If an AI agent wrote or posts it, the pull request says so, and commits keep its co-author line.
- Never commit Mojang's files. No game jars, assets, decompiled code or prepared resources, and nothing taken from other mods' code.
Contributors
Everyone with commits in Horizon. On Discord, /link-github <your login> credit:True adds your Discord name next to yours.
- {{HUB_CREDIT}}
Not an official Minecraft product. Not approved by or associated with Mojang or Microsoft.