SKILL/TREE

Run a 5e one-shot tonight without pre-game prep panic

Tell it party size, level, tone, setting, and hours. Get back a complete one-shot: hook, 3 CR-balanced encounters, a social challenge, a puzzle, read-aloud for every scene, treasure, and a flexible wrap-up.

$3.99
Works in Claude (Pro/Max/Team) or ChatGPT (Plus/Team) · paid AI plan required
Both Claude + ChatGPT packages included — you can't pick the wrong one.
Updated
Included
01Hook your players can buy into in 60 seconds — no 'you all meet in a tavern' filler
023 CR-balanced combat encounters, 1 social challenge, 1 puzzle — pacing for a 3-4 hour session
03Read-aloud box text for every scene so the DM can run it cold without re-reading
04Treasure scaled to party level — a magic item the party will actually attune to, not vendor trash
05Flexible wrap-up: a fast version if you're running short on time, a longer one if the party clears it fast
06HTML artifact you can print, save to your phone, or paste into Roll20

What it does

The session is in three hours, four friends are coming over, and you have nothing prepped. This is a D&D 5e one-shot generator that hands you a complete drop-in module in 90 seconds — hook, encounters, puzzle, treasure, and the read-aloud text for every scene. No scrolling, no improvising from a 50-page module you've never read. Tell the skill: party size (3-6), average party level, tone (heroic / grimdark / comedic / horror), setting (haunted lighthouse, frozen catacombs, royal court, smugglers' cove), and hours available (3-4 is the sweet spot). It produces a complete 3 hour D&D adventure module with a hook your players can buy into immediately, three CR-balanced combat encounters pacing-tuned for the time budget, one social challenge with named NPCs, one puzzle with a clear solution path AND a fallback if the party gets stuck, treasure scaled to level, and read-aloud box text for every scene so you can run the whole thing cold. Bundled with a flexible wrap-up: a fast version if you're running long, an extended version if the party clears content quickly. Built for the actual DMing constraint — not 'a perfect adventure,' but 'something I can run TONIGHT that doesn't suck.'

Frequently asked

How do I run a D&D one-shot in 3 hours without prep?
Generate the adventure with this skill (party size, level, tone, setting, hours). Read the one-page hook to your players. Run scene by scene off the box text and stat blocks the skill provides. Most DMs need 10-15 minutes to skim the module — not 3 hours of prep.
Will the puzzle actually be solvable or is it the kind where the DM has to railroad them?
Every puzzle ships with a clear intended solution AND a fallback for when the party doesn't get there. The skill assumes your party is going to think laterally — and gives the DM a 'if they try X, here's how to respond' branch.
Can I get a horror-tone one-shot or only heroic fantasy?
Tone is an input. Heroic, grimdark, comedic, horror, mystery, and political-intrigue all produce noticeably different adventures — the prose voice, encounter design, and NPC behavior shift accordingly. A horror one-shot reads completely differently from a comedy tavern brawl.
Is this for 5e specifically or also Pathfinder?
Tuned for D&D 5e — encounters use 5e CR math, stat blocks are 5e formatted, treasure references 5e magic items. For Pathfinder, the narrative structure (hook, encounters, social, puzzle, wrap-up) works fine but you'll need to convert the stat blocks.
How is this different from buying a $5 one-shot module on DMs Guild?
DMs Guild modules are written for a generic party at a fixed level. This skill generates a one-shot specifically for YOUR party (size, level, tone, time budget). Plus you can re-run for a different party next week — buying a new module each time gets expensive.

Install — no Terminal required

After checkout you land on a page with a one-click download and a pre-built install prompt. Pick the AI you already pay for — both packages are included, so you can't pick wrong.

What you'll see the second your payment clears
Your license key
ST-XXXX-XXXX-XXXX · permanent
Pre-built install prompt⧉ Copy
ChatGPT package (ZIP)⬇ Download

No setup work before you buy — copy, paste, done.

Have Claude Pro, Max, or Team?
Copy the prompt, paste into Claude

Copy the pre-built install prompt from the success page, paste it into any Claude Code chat, and Claude installs the skill itself — about 10 seconds. Using the app instead? Drop the downloaded folder into a Claude Project's knowledge and ask Claude to use it.

Have ChatGPT Plus or Team?
Build a Custom GPT — ~2 minutes
  1. Click Download ChatGPT package (included with every purchase).
  2. Unzip it — inside is a SETUP.md and a knowledge/ folder.
  3. Go to chatgpt.com → your profile → My GPTs Create a GPTConfigure.
  4. Paste the Name, Description, and Instructions from SETUP.md into the matching fields.
  5. Under Knowledge, upload every file in the knowledge/ folder.
  6. Click Create/Save, open your GPT, and describe your task in plain English.

A paid plan on either platform is required — Claude (Pro, Max, or Team) or ChatGPT (Plus or Team). Comfortable with Terminal? A one-line npx skilltree-network install path is available too.