Design partner
Runs on your own Claude
The talking and the writing happen on your Claude plan. Beeloop Engine only charges for pictures and animation.
Concept sheets
Characters
Buildings
Title screens
Vehicles
LevelsA desktop app for making 2D games with an AI design partner. You talk it through; it writes the design, draws and animates every character and place, lays out the levels and builds a game you can play.
“I want a cozy idle game where you run a car rental lot next to an airport. Cars come back dirty, so you wash them, fuel them and rent them out again.”
For Apple silicon Macs. Also for Intel Mac or Windows. Version 0.2.0 beta 14, free, and it updates itself.
Download for MacTell the design partner what you want to make. It asks about what's missing, then writes the game document that everything else is made from.
Design partner
The talking and the writing happen on your Claude plan. Beeloop Engine only charges for pictures and animation.
The gameWritten from your answers
Turnkey is an idle game where the player manages a fleet of rental cars: My Perfect Hotel meets a car rental lot.
CharactersWho they are, how they talk

Marco Ruiz Ex go-kart champion, 22. Loves driving, any car, any distance.

Dot Okafor Former flight attendant. Chatty, remembers every regular's name.

Lou Brennan The lot's mechanic for 20 years. Gruff, few words, secretly soft.
Game document
Characters and what they say, items and shops, enemies, levels and sounds. The art is drawn from what the document says.
Every character gets a concept sheet first, in your game's look. Its sprite and all of its moves are drawn from that sheet, so it looks like itself everywhere.
Concept sheets
Remake a sheet until it's right. Everything after follows it, from the sprite on the board to the last frame of a run.
Front
Three-quarter
Side
Back
Animation
Idles, walks, runs and actions come from short video clips, cut into frames that loop cleanly. Top-down characters get every move facing front, side and back.
Buildings, props and tiles are drawn at their real size in the game. Lay out the levels, play as you go, and build it for Mac or Windows when it's ready to share.
Place the buildings, props and tiles you've made, level by level.
Play the game in a window whenever you like, then keep changing it.
When it's ready, the app builds a standalone game you can send to anyone.
Turnkey's cast, buildings and cars, as the app drew them for the game.
Marco Ruiz
Dot Okafor
Lou Brennan
Victor Vance
The lot owner
A customer
A business traveller
Rental office
Car wash
Fuel station
Sedan
Compact carThe app is free. The design partner runs on your own Claude plan. Pictures and animations are paid for with a monthly plan or with credits.
$20a month
The everyday amount of art
$100a month
5 times Hobbyist's art
$200a month
10 times Hobbyist's art
$1for 100 credits
A picture is about 13 to 22 credits, an animation about 36 a clip
Plans have a daily and a weekly allowance; credits never expire. Art that fails to come out costs nothing. Choose a plan or buy credits from your account.
A Mac with Apple silicon or an Intel chip, or a PC with Windows 10 or 11, and a Claude plan for the design partner.
2D games seen from the side, from above or at an angle: platformers, top-down adventures, and management and idle games like Turnkey.
On your computer, in a folder you choose. Each one is a whole game project, not a file locked inside the app.
Yes. The app builds your game for Mac and Windows as a standalone app you can send to anyone.
It's in beta. It updates itself, and new versions come often.
Tell the design partner the game you want, and build it from there.
Download for Mac