For Roblox developers

Your AI already
writes Luau. Make it
prove the game runs.

Baseplate points the Claude Code, Codex or Cursor plan you already pay for at a live Roblox Studio session: playtest, real runtime error, fix in your source, re-verify. No AI credits to buy, and no quota that runs out halfway through a build.

Free forever plan · no card required · Windows & macOS

Want us in the first run? Get a live Bug-to-PASS session with your first month of Pro →

Nova Playtest Copilot PASS
▶ playtest started · demo-tycoon
ServerScriptService.Tycoon:46: attempt to compare nil < number
Cash isn't initialized before the dropper pays out. Fixing Tycoon.server.luau…
✎ Edit · src/server/Tycoon.server.luau
✓ re-ran playtest — console clean · PASS
The Playtest Copilot loop — no clicking, no copy-pasting stack traces.

Baseplate Verify · free

Your build, reduced to one next move.

Run one local scan across security, DataStore safety, code hygiene, regression evidence, performance and the live Studio bridge. Baseplate separates static signals from real Studio proof, then ranks the shortest path to a verified build.

Local scan · no source upload · no AI credits required

Want us to set it up with you? Apply for one of 10 free hands-on onboardings →

82/ 1002 steps to verified
  1. Static safety scan0 high-impact findings
  2. Capture performance budgetThen · release-ready proof

See it run

Watch an agent fix a bug it found itself.

Muted by default · click the video to pause or replay

Drive it in your browser

Prompt the build.
Watch the proof arrive.

This interactive simulation runs entirely in your browser — no account, AI credits or source upload. Type a Roblox task and watch Baseplate coordinate the builder, Studio and Regression Lab.

Local simulationYour prompt never leaves this page.
Baseplate · demo-tycoonReady for a mission
BuilderCodex · demo-tycoonworking tree
› Waiting for your prompt…
Studiolive bridgeconnected
› Play session idle · Output clean
Roblox Studio bridge
Regression Labevidence chainbaseline #18
› Scenario queued · 6 deterministic steps
EpochPlayStateStopErrors
Remote Contractsserver authoritylocal scan
› 8 server handlers mapped · no source uploaded
type · range · rate limit · ownership
Try:

Interactive product simulation. The desktop app performs these actions against your real local project and Studio session; this page does not execute code or contact an AI provider.

Works with
Roblox Studio Claude ChatGPT Cursor Grok Gemini Rojo Open Cloud

The flagship loop

Playtest → error → fix → PASS.
Without you in the middle.

Every Roblox dev knows the ritual: playtest, squint at the Output window, alt-tab, guess, repeat. Baseplate's bridge gives agents eyes inside Studio — they run the playtest, read the actual runtime error, fix the cause in your source, and re-run until the console is clean.

01

Playtest

The agent runs your game through the live Studio bridge and watches the console — the same output you'd read, minus the squinting.

02

Diagnose

It reads the real stack trace, finds the cause in your Luau source, and explains it in plain language — not a cryptic dump.

03

Fix

It edits src/ directly. Rojo syncs the change into Studio the moment it's written.

04

Verify

It playtests again and only reports PASS when the console is actually clean. No "should work now".

Exploit Guard

Every unvalidated RemoteEvent is free money for exploiters.

If your server trusts the client — prices, rewards, damage — someone will find it. Exploit Guard audits your live game like an attacker would: it maps every remote, tells you each hole as a plain-language attack story ranked by severity, and writes the server-side hardening for you.

  • Finds remotes that trust the client before players do
  • Explains each exploit as the attack it enables — "a client can dictate its own price"
  • Writes validated, server-authoritative fixes into your source

Included free Exploit Guard ships in the Free plan. Protecting your revenue shouldn't be a paywall.

The full toolbelt

One deck. Every job a Roblox studio
hires people for.

Each of these is a one-click mission that runs on a real agent with eyes inside your game — not a chatbot guessing from the outside.

Crew — visible agent swarms

A Foreman plans the mission and spawns builders in their own tiles, each owning its files. Watch a whole feature get built in parallel, narrated in a live mission feed.

Ship Gate

"Is it safe to release?" answered honestly: one verdict across runtime, security, data safety and robustness — with every blocker named as its real-world consequence.

Economy Simulator

Models every currency source and sink in your game, simulates a cohort of players, and flags inflation, progression walls and money-printer loops — with tuned numbers.

Live-game Doctor

Connects to your published game via Open Cloud, reads real player data, and diagnoses retention cliffs, stuck players, corrupted saves and live exploits.

Prompt-to-game

Describe a game in one sentence. Baseplate scaffolds the workspace and a Crew builds the first playable slice — loop, saving, UI — before your coffee cools.

Starter kits

Pick your genre — tycoon, simulator, obby, tower defense, horror escape, battlegrounds. Baseplate scaffolds the project and agents build the real loop into it. Free plan included.

Asset & UI Generator

Generates mobile-safe Roblox UI in Luau, then looks at the result through the bridge — overlap, off-screen, contrast — and iterates until the layout is clean.

Ask your game

A knowledge index of your source — ask "where is the shop logic?" and get file:line answers instead of an agent burning tokens re-reading every script.

Mission marketplace

Battle-tested, one-click missions: gacha with pity, anti-dupe trading, daily streaks, rebirth, global leaderboards. The systems every hit game needs, pre-briefed.

Multiplayer harness

Simulated player load hunting the bugs only multiplayer surfaces: desyncs, two-players-buy-the-last-item races, client-authority holes, state leaks.

The deck

It feels less like a tool,
more like a team.

Agents live in tiles on a deck — real terminals when you want them, clean transcripts when you don't. A Kanban board dispatches work, a mission feed narrates progress, and the Studio panel shows your bridge, Rojo and plugin health at a glance.

  • Native Claude Code terminals in tiles — every command and /model works 1:1
  • Tiles open instantly, pre-warmed and pre-approved
  • Voice dictation into any tile, command palette everywhere

Pricing

Start free. Upgrade when
your game earns it.

Simple monthly or yearly plans. Cancel or switch in the billing portal at any time.

Free
$0forever

Build, fix and secure one game at a time — with the full Studio bridge.

  • One agent tile at a time
  • Live Studio bridge + Rojo sync
  • Playtest Copilot — fix & explain runtime errors
  • Exploit Guard security audit
  • Baseplate Verify + Regression Lab + Remote Contracts
  • Starter kits + demo game to start from
Download free
Studio
$12.99/ month
billed monthly

For teams shipping together — shared board, shared prompts, live presence.

  • Team collaboration — shared board & prompt library
  • See who's online on your team
  • Up to 10 agents in parallel
  • Bigger Crew swarms (up to 8 builders)
  • Everything in Pro
Get Studio

Your license key is shown immediately after a successful checkout, and we also attempt email delivery — paste it into Baseplate and you're upgraded. Cancel or change your plan anytime. 14-day refund, subject to the limited anti-abuse exception in our Refund Policy.

Get Baseplate

The app and Studio bridge run locally. Project data goes only to the AI provider you choose; Baseplate does not host your source repository.

Prerequisites: Roblox Studio plus at least one supported agent CLI. Claude Code, Codex and Cursor can run the verified Playtest Copilot; Grok and Gemini CLI work as builder tiles. The current direct Windows installer may show SmartScreen until the Microsoft Store listing is certified. The current unsigned macOS build requires Apple's Open Anyway steps; only an Apple-notarized release can remove that warning.

FAQ

Fair questions.

Do I need my own AI subscription?

Yes — Baseplate drives your existing agent CLI account. Claude Code, Codex and Cursor support the verified Playtest Copilot and can be mixed in one Crew; Grok and Gemini CLI are available as builder tiles. Baseplate does not resell AI tokens — which is exactly why Pro costs $4.99 instead of the $20/month that credit-based tools charge. Your prompts cost whatever your own plan already costs, with no meter on top. See the honest comparison.

Does my code leave my machine?

Baseplate does not upload your projects or keys to Baseplate. Your selected AI provider receives prompts, code and context needed for the work. License validation sends your key and a random installation identifier to our Cloudflare service. If you enable team collaboration, board cards, shared prompts and display names sync through the team service; source files and API keys do not.

Why not just use Roblox Studio's built-in Assistant?

For a lot of people, you should — it is free, already open, and since April 2026 its playtesting agent can read logs, capture screenshots and drive input to find bugs. We are not going to pretend otherwise. Two things push developers here instead: the meter — Assistant is metered, and developers report hitting the limit mid-prototype with stuck runs still consuming quota, whereas Baseplate spends the AI plan you already own — and the work around the code: security auditing of remotes, economy and multiplayer simulation, replayable regression recipes and live-game operations. Read the full comparison, including where Roblox wins.

How is this different from just using Claude Code in a terminal?

The bridge. A terminal agent can write Luau, but it's blind — it can't playtest, can't read the Output window, can't check the live DataModel. Baseplate gives agents eyes and hands inside Studio, plus the deck, board, swarms and one-click missions built on top.

How do I cancel or change my plan?

Anytime, yourself — no email required. Open the billing portal and sign in with the email you paid with; from there you can cancel, switch between Pro and Studio, update your card, or download invoices. A cancellation keeps your plan active until the end of the period you've already paid for, then drops you to Free.

What happens when my Pro subscription lapses?

You drop back to Free — one agent at a time, with the bridge, Regression Lab and Remote Contract Compiler still included. Your projects, workspaces and history stay untouched on your disk.

Is the Studio plugin safe?

The plugin only talks to Baseplate on 127.0.0.1. The local server rejects foreign Host and browser Origin values, the Electron renderer is sandboxed, and release packages use ASAR integrity checks. No security control can guarantee invulnerability, so review agent-generated changes before you ship.

I'm a student / hobbyist. Is Free actually usable?

Free is the full core loop: one agent with complete Studio access, Playtest Copilot, Rojo sync, Regression Lab and Remote Contract Compiler. It's deliberately generous — if Baseplate never earns your upgrade, it should still make your game better.

The next bug in your game
doesn't have to be yours to fix.