Instant Dungeon

5e-compatible · private beta

Tonight, you
run the game.

Instant Dungeon One-Shot turns any hangout into a 5e-compatible game table in fifteen minutes.

Your friends join from their phones. You run the game.

Get beta access See how it works

Free beta · GM on iPhone · Players on the web

Four friends in costume accessories laugh around a game table with a landscape device showing the prepared adventure.
Playtested with outside GMsSince October 2026
SRD 5.2.1 rulesEvery rule cites its source
No AI at the tableAI prepares. A human runs the game.
Friends join from their phonesNo player account or app required

How it works

Three steps. The third
one is the fun part.

  1. A landscape phone showing theme and session-length choices.

    Pick a theme
    and a length

    Choose 1 hour, 2 hours, or 3–4 hours. Set family-safe and what to keep out.

  2. A landscape screen showing the prepared one-shot.

    Get the one-shot

    Scenes, secrets with clue paths, the cast, fights, and treasure. Edit anything.

  3. An invite card with a QR symbol, a space for the table’s code and a copy-link action.

    Send the link,
    run the night

    Friends join, choose a character, and roll when you ask. You keep the table moving.

Illustrative interface samples.

At the table

One table.
Two views.
You run
the night.

GM-only numbers stay with the GM. Players get the prompt they need.

Landscape GM view with initiative, hit points, and a Wisdom-save request with DC 12.
GM view · run the game

Manage initiative, check the rules, and ask for a roll.

Open landscape sample
Landscape player view showing Bram's Wisdom-save request, rolled at +5, without the GM-only difficulty class.
Player view · make your move

Join from your phone and roll when the GM asks.

Open landscape sample

End-state UI reconstructions, not captures of the live app.

An invitation card with a space for your referral code.

Bring your table

Each friend who signs up with your code earns you a month.

The beta is free. Everyone who signs up gets one free month at launch.

GMs get a referral code. Every person who signs up with yours earns you one more free month, up to 12 months. A player counts when they sign up; a GM counts when they make their first one-shot.

Free months are a launch promotion, not a payment. How you use them is set when pricing is. Referral terms

Get your code when you sign up

Questions GMs ask first

Is the beta free? What does “1 month free” mean?

The beta is free. Everyone who signs up gets one free month at launch. There is no pricing yet; your free months are recorded with your sign-up for launch.

Who can sign up?

Anyone 13 or older, as a GM or as a player. During the beta we only send service emails: your code, your invite and your free month.

Do my players need an account or the app?

No. Players join on the web through a QR code or a 6-character room code, give a display name, and choose or build a character.

Which phones does it run on?

The GM beta uses an iPhone app through external TestFlight. Players join in their phone browsers; the app is optional for them.

Does the AI run the game?

No. AI prepares the adventure before play. A human runs the table. No AI is used at the table.

What do you store about me, and can I leave?

Your sign-up keeps what your sign-in provider shares with us (an account id and, usually, your email), your role and your referral details. You can delete it at any time from the welcome page or on Delete my data. The privacy notice has the details.

Your next game night
is a link away.

Get a prepared one-shot.
Bring your friends.
You run the night.

Get beta access