Roblox game kit for Claude Code

Claude builds your game in Roblox Studio on a core that already handles saving, Robux purchases and cheaters, then playtests every change before it reports back.

Get started for free See it in action

claude · simulator.rbxlStudio connected

Add a fourth zone called Volcano with a Magma Egg. Make it cost 60K Coins.

Read ReplicatedStorage.Game.Config

Edit Config.Zones[4], Config.Eggs.Magma +31

Playtest

unlock Volcano gate 60K Coins spent

hatch Magma Egg Cinder (Rare)

egg in locked zone refused

restart, check save zone and pet kept

output 0 errors

Volcano is live behind a 60K gate. The Magma Egg shows its odds on the stand.

How Playbuilt works

You describe a change in plain words. Claude makes it inside Roblox Studio, plays the game to check it, and tells you what it tested.

Open a starter game

Open a template in Studio. Saving, purchases and the shop already work on the first Play.
Ask Claude for a change

Claude Code connects to Studio through Roblox's own MCP server and reads your game before it edits anything.
Claude edits and playtests

It builds on the core, then plays the game: walks to buttons, buys items and restarts to check the save.
Publish when it's yours

Claude lists anything only you can do, like creating a game pass. You publish when you're happy.

Three starter games you open in Studio

Each template is a place file that runs on the first Play. Names, prices and colours live in one Config script, so a reskin is one request to Claude.

Tycoon

Buy droppers and upgraders in order, collect from the conveyor, rebirth for a bonus. Bases rebuild when players rejoin.

4 plots · 9 items · about 18 min to the first rebirth

Simulator

Tap for Coins, hatch pets from eggs that show their odds, equip the best three, pay to open new zones.

3 zones · 9 pets · taps capped at 15 a second

Steal-and-defend

Buy critters off a runway and earn from your base. Steal from other bases, catch thieves, lock your doors for 30 seconds.

6 bases × 8 slots · tested with two players

Core modules for saving, purchases and remotes

Every template, and everything Claude adds later, runs on the same core modules. Claude reads their headers and builds on them instead of starting over.

-- The server looks up the price.
-- The client only says which button.
Net.on("BuyButton", {
  rate = 5,
  args = { Net.check.string(40) },
}, function(player, id)
  local item = Config.Items[id]
  if item
    and Economy.spend(player, "Cash", item.price) then
    Tycoon.unlock(player, id)
  end
end)

PlayerData

Session-locked saves on ProfileStore, so hopping servers can't duplicate items.

Monetization

Grants each developer product once and confirms the save before Roblox marks it paid.

Economy

Currencies with stacking multipliers and leaderstats that show 1.2M.

Collection

Pets and collectibles with weighted odds you can display to players.

Net

Rate limits and argument checks on every remote. Spam and junk data change nothing.

Dev

Studio-only hooks Claude uses to give Coins, send test receipts and read saves while it playtests.

Every template played in Studio before release

Claude walked the characters, pressed the buttons and tried to cheat. These are the checks each release has to pass.

Check	What happens	Result
Saving	Buy items, stop, restart. Bases, pets, zones and Cash come back.	all three
Robux receipts	The same purchase ID arrives twice, also after a rejoin. It grants once.	all three
Remote spam	40 taps in one burst pay exactly the 15-a-second cap. Junk arguments pay nothing.	simulator
Locked content	Hatching an egg in a zone you haven't opened is refused, Coins kept.	simulator
Stealing	A delivered steal moves the critter exactly once. A catch or timeout returns it.	two players
Teleport cheat	A client teleports into a locked base and holds Steal. The server refuses.	two players
Fresh download	Each place opens straight from the zip and plays.	all three

Pricing

One-time payments. Start with the free tycoon, or get the kit with Claude's skill and the core.

Tycoon Lite

A small tycoon to open in Studio and play.

Get started for free

One place file: conveyor, three droppers, saving
Runs on the first Play
No Claude skill or core modules
No Robux purchases or rebirth

One template

$21.99one-time

Pick tycoon, simulator or steal-and-defend.

Buy one template

The Claude skill and Studio testing guide
Core modules as source and drop-in models
Your template as a place file and source
12 months of updates to that template

Full kit

Best value

$29.99one-time

All three templates for $8 more than one.

Buy the full kit

Everything in One template
Tycoon, simulator and steal-and-defend
Trend scout for Roblox's discovery charts
New templates added within 12 months

Every download asks for your email and sends you a receipt. Paid checkout is by Link, Stripe's checkout, which handles payment and tax. Refunds within 14 days of purchase, for any reason, until you first download the kit. You must be 18 or older.

Questions before you buy

What do I need to run it?

Roblox Studio, and Claude Code on a paid Claude plan for the skill. Tycoon Lite only needs Studio. The setup guide connects Claude to Studio in about ten minutes on Windows or macOS.

How is Tycoon Lite different from the paid plans?

Tycoon Lite is one fixed place file to try. The paid plans add the core modules and the Claude skill, which is what lets Claude add zones, shops and passes without breaking saves.

Does it work with a game I already have?

Yes. Insert the two core model files into your place, then ask Claude to move your saving and shop onto them.

Can I sell games I make with it?

Yes, as many as you like, including ones that earn Robux. The license stops you reselling or sharing the kit and its templates.

Can I get a refund?

Yes, within 14 days of purchase, for any reason, as long as you haven't downloaded the kit. Before your first download we ask you to confirm that downloading ends the refund. Reply to your download email or write to support@playbuilt.dev, and the refund goes back to how you paid.

How do I download it again, or get updates?

Sign in at playbuilt.dev/account with the email you used. There's no password: we email you a sign-in link, and your downloads are always the latest version.

Will a template make my game popular?

No template can promise that. The kit covers saving, purchases and cheating; players stay for the game you build on it.