Fifth Door

Application

Browser platform where a user describes a game in Studio and Fifth Door's agent builds and publishes it, other players' games can be remixed, and developers can publish their own static web games from Cursor, Claude Code or Codex through an MCP server; in public beta.

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TypeApplication

RoleStandalone tool

Bought forCode with an AI assistant

AvailabilitySold

DeploymentSaaS

Intended forConsumer, Developer

SecurityNot recorded

StatusActive

Sold withinPackaging not stated — the vendor’s page was checked and named no parent or plan

PricingFreemium

Pricing, Deployment, Sold within — play.fifthdoor.com · 18 Oct 2026

What it does

Code generation
Agentic coding

Features 4

No-code game creationCreate games without writing code using the platform's AI.
RemixTurn an existing game into a new one.
Studio agentDescribe a game in the browser and the platform's agent builds and publishes it.
MCP publishingMCP server for publishing a game from an outside coding agent.

play.fifthdoor.com

Sources

Pricing

Not found · 18 Oct 2026

No public price list: the pricing page requires sign-in. The terms say fees may apply to portions of the Services and describe subscriptions and a virtual currency called keys.

Description

Official documentation · 18 Oct 2026

About page: "Fifth Door unlocks the power of imagination by making it easy for you to create, share, and play turn-based games anywhere, with anyone." Docs: "Describe a game in the browser and Fifth Door's own agent builds and publishes it."

What it does

Official documentation · 18 Oct 2026

Sold within