Torii gates at Fushimi Inari Taisha, Kyoto – painted illustration
Rusty & Ruffy International StudioSwitzerland · Since 2026

We build AI for the work we actually do.

Two founders, one studio. Our first product, Brickbrain, plans a Roblox game with you and builds it in Roblox Studio. It's an internal prototype – we prove it on our own games first.

BrickbrainLava Obbygpt-oss:20b · local
Lava ObbyStage 5 of 9 · Scripts

Build me a lava obby: 5 platforms, checkpoints, lava and a finish.

Got it. Two questions first:

  1. One player or several?
  2. How long should one round take?

Solo, about three minutes.

Plan written9 stages · 24 tasks
Writing scriptCheckpoint.server.luau
Answer or describe the next step …

Illustration based on our internal prototypeA real session, redrawn: the AI asks first, then writes the plan for a lava obby.

01 Brickbrain · Early development

One AI for the whole game.

Most AI tools stop at code. Brickbrain asks what you want to build, plans the game stage by stage, puts the result into Roblox Studio – and checks it with a playtest.

BrickbrainLava Obby – Checksgpt-oss:20b · local
10 splayed in Studio
0errors
0warnings
  1. Script savedTimerClient.client.luau
  2. Code checkedLuau analysis · 0 problems
  3. Playtest passedRoblox Studio

Output

PLAYTEST OK · 10 s played · 0 errors · 0 warnings

CheckpointManager loaded

Checkpoints ready: 5

Brickbrain needs you

Continue with verifying the checkpoint logic, or skip this task?

ContinueSkip this task
Illustration based on our internal prototype
  1. 01

    Asks first

    You describe the game. It asks the questions that matter before it builds anything.

  2. 02

    Plans in order

    Design, models, world, scripts, UI, sound, effects and testing – one plan, one order.

  3. 03

    Builds in Studio

    Scripts and parts go straight into Roblox Studio, where the game actually lives.

  4. 04

    Checks its work

    A playtest checks the result, and what it learned is saved for the next game.

02 RR Lingua · Concept

Learn a language for a real goal.

A learning platform that turns a personal goal – like attending high school in Japan – into a concrete study plan that adapts as you go. It's still a concept: we'll start once Brickbrain has proven itself.

RR LinguaMy plan

Goal

“I want to attend high school in Japan in two years.”

JapaneseBeginner1 h / day
  1. Months 1–3FoundationsHiragana, katakana, core grammar
  2. Months 4–9Everyday JapaneseConversation, first kanji, JLPT N4 level
  3. Months 10–18School-readySchool vocabulary, reading, JLPT N3 level
  4. Months 19–24ApplicationInterview training, essays, documents
Concept illustration – not a real product screen yet.

How we work

Small studio.
Four rules.

The rules we hold ourselves to – for every project, not just the first one.

  1. 01

    Problem first

    Every project starts with a problem we ran into ourselves – not with a technology looking for a use.

  2. 02

    We use it first

    We build our own games with our tools before anyone else gets them. If it doesn't help us, it won't help you.

  3. 03

    Local by default

    Project knowledge stays on your own machine wherever possible. Nothing is used for training without consent.

  4. 04

    One thing at a time

    A small team with clear priorities. We bring one project to maturity before we push the next.

What does RR stand for?

Rusty & Ruffy.

Two founders, one studio. We started with a simple observation: today's AI tools are powerful, but rarely made for the work we actually do. So we build our own – and prove them in our own work first.

FAQ

Questions, answered.

What is RR International Studio?

An independent AI product studio from Switzerland, founded by Rafael Ethan Kuhn and Lucas Canales. We build focused AI tools – starting with Brickbrain, an AI for making Roblox games.

Is it a registered company?

Not yet. We are an early-stage startup project and not entered in the commercial register. We plan to incorporate once our first product is ready.

Why do you need cloud credits?

Training and evaluating a specialized model needs GPU compute. Credits let us train Brickbrain's model and test it on real Roblox projects without outside funding.

Can I use Brickbrain?

Not yet. A first internal prototype is running, and we use it for our own games. A closed beta for other Roblox developers is planned once it has proven itself.

Are you affiliated with Roblox?

No. We are independent developers building for the Roblox platform. Roblox is a registered trademark of Roblox Corporation.

How can I reach you?

Write to hello@rr-international-studio.ch – we usually reply within two business days.

Contact

Startup program, partner or just curious? Say hi.

We usually reply within two business days.