Omenarium
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Run your whole tabletop game from one screen.

Maps, hex-crawls, a session journal, a bestiary and a combat tracker, in one fast app for Game Masters. Omenarium is the prep desk you have been improvising with six browser tabs.

Beta doors are opening – Game Masters, claim your seat at the table.

Free to start. No card. We only email you about the beta.
A hand-drawn style fantasy region map inside Omenarium, showing mountains, a pinned town, roads and rivers.
The Omenarium desktop app on the Map page: a full painted fantasy continent with the world panel, toolbar and navigation around it.
What it is

All of your prep in one place. Not a wiki. Not a virtual tabletop.

Living world maps

Paint terrain, drill from continent to town, and track a hex-crawl. Import your own map or start from a generated one.

Session journal

Write what happened, tag the NPCs and places they met, and let it pull in your combat recaps. It always remembers where you left off.

Combat that flows

Roll initiative, track HP, conditions and death saves, split allies from enemies, and pull a planned encounter straight into the fight.

Yours, and offline

Installs like an app and works with no internet. Your campaign data stays on your device, with one-click export whenever you want it.

See it in action

The fight, the chronicle, the world.

The combat tracker mid-fight: initiative order, HP bars, a difficulty badge and a smart target suggestion.
Round one, already rolling. Load a planned encounter straight into the tracker – initiative, HP, conditions and a target hint that knows how pack tactics work.
A session journal entry with in-game date, tags for NPCs and places, and a cliffhanger field.
The chronicle keeps itself. One click stamps the date, pulls in the combat you just ran, and asks the only question that matters: where did we leave off?
The world tracker showing NPC cards with status, disposition and home location.
Everyone your party has ever met. NPCs, locations, factions and quests, cross-referenced – so "wait, who was the blacksmith?" takes two seconds, not ten minutes.

Built in the open by a working Game Master.

Beta testers get early access and a direct line on what ships next. Add your email above and I will be in touch as spots open.

Questions

The short version.

Is it free?
Free to start, and the core of the app – maps, party, combat – stays free. No card, no trial countdown. Paid tiers come later and gate quantity (more campaigns, cloud sync), never the core play experience.
Does it really work offline?
Yes. It installs like an app and runs entirely on your device – prep on a plane, run a session in a basement with no signal. An account is never required to play.
Where does my campaign data live?
On your device, in your browser's storage. Nothing is uploaded unless you sign in and use a cloud feature, and you can export everything with one click at any time.
What game systems does it support?
It is built for fifth-edition–compatible games, with the full SRD bestiary included. It is an independent, unofficial tool – not affiliated with Wizards of the Coast.