What it is
One mod where a server usually runs dozens, one jar for both sides, the editor inside. What it does today, and what it does not.
This page is older than Keystone 0.2.8, released 18 October 2026. Something may have changed since.
On this page 5 parts
STYGION Keystone is one mod where a server usually runs dozens. Discord, ranks, tickets, votes, restarts, backups, entity cleanup, the tab list, real skins on an offline server, password logins, bans, daily crates, VIP on claims, /spawn, warps — and a web editor that comes inside the same jar.
It runs on Fabric and NeoForge, on Minecraft 1.21.1 and 26.2. Four files, the same mod in each. Free.
One file, two halves
#The same jar goes in mods/ on a server and in mods/ on a player's client. There is no server edition and no client edition, no second download, and no pair of version numbers to keep in step.
Everything Keystone does today is done by the server — which is why a player joins with the client they already have and has nothing to download. The heavy half, the one that draws on a player's screen — chat in full colour with Discord emoji, the map, the richer tab list, quests, teams, the in-game screens — is being written and arrives in that same file. What has shipped is at stygion.eu/updates.
What it does today
#| Discord | Chat both ways, account verification from a code typed in game or a button in a room, roles and bans held in step, the console in a channel, the server's state (up, going down, restart in X), tickets with a transcript |
| Work on a clock | Restarts that warn first, backups that share unchanged files, entity cleanup that merges before it deletes, announcements in rotation |
| Ranks | Earned by playtime, prefixes that stack, shown in the tab list and in front of the name in chat (the heaviest, or every one with {prefixes}), promoted without anybody triggering it |
| Votes | NuVotifier v1 and v2, streaks, party goals — a vote after every reset of a site pays (or one a day, as you choose), a vote that does not count says why, and a vote that arrives while its player is away pays out on their next join |
| Crates | A key for every day on the server, opened with /crate; what is in them is up to the server (from coins with a look of their own to commands). In detail |
| Territory | Reads claims and teams from FTB Chunks: more claims and force-loaded chunks by rank and playtime, /fly over your own claims. In detail |
| Essentials | /spawn, warps, homes, /rtp, /tpa and /back for everybody, /vanish for staff. In detail |
| A player's own language | Each player picks the language Keystone speaks to them, and a server writes its translation in the editor. In detail |
| Accounts on an offline server | A password, or a question on Discord, or both. A bought account's name can be kept from whoever did not buy it |
| Skins | Real faces on an offline server, and /skin from any link |
| Moderation | Bans with an end or without one, kicks, a history — and the screen a player actually sees |
| The assistant | Your model, your key. It answers about your server and changes nothing on its own |
| Performance | /keystone test 20 says how many players this machine holds with your pack, and what gave out first |
| A local API | All of the above behind keys with narrow scopes, with an OpenAPI document the mod writes itself |
Each of those is a module, and a module that is off is never built at all — no memory, no thread, no tables. Modules that hand things out (crates) start off after an install until an owner switches them on.
The editor is inside
#Type /keystone panel, click the link in chat, and the whole mod is in a browser: an overview of the server, players, groups, operations, backups, performance, the console, crates, settings and languages. No account with us, no cloud, no extra port — the page is served by your own server off the same jar. In detail on the panel page.
What this version is not
#Quests, teams and claims of its own are not in the mod — it reads claims and teams from FTB Chunks when a server has them. Holograms and the in-game screens on the client are not there either, and neither is the client half they belong to. None of it is pretended at here and we promise no dates; what has shipped is at stygion.eu/updates.
Where to go next
#- Installing it — which of the four files, and where it goes
- First steps — permissions, the editor, switching modules on
- When something is wrong — the handful of things that actually go wrong
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