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A ride across Atlanta gets weird
Ellison dropped his phone playing frisbee in Piedmont Park. Find it, survive Atlanta’s most popular bike path, and reach Morgan at 98 Estoria before the clock runs out. It’s free to play now in an open beta on Windows or Mac.

Why we built it
Well, we have super cool clients. One of them asked us what we could do with 4 billion tokens, two frontier models, and 7 days.
Since that client was in the building sciences arena, we thought we would explore what AI and Unreal Engine could do. First we started brainstorming a virtual walkthrough of iconic buildings in Atlanta. Then someone said, “I wonder when GTA VI is coming out.” We all laughed, and decided it would be pretty funny to build an indie GTA VI before GTA VI was released.
So now I present to you The Battle of ATL. We fully digitized Piedmont Park — the most heavily trafficked park on Atlanta’s most popular bike path — plus Krog Street Tunnel and Murder Kroger.
Before you download
The download buttons are below, after the build details. No signup, no email, and no code — pick your platform, grab the file, and play.
Click the download button for your computer. No signup and no email required.
Grab the Windows build from our public GitHub page, or install the Mac build through Apple TestFlight. Open it and start riding. Unreal Engine is not required.
Want to know when the next build drops? Add your email and we will send you a note. No spam.
Sprint 1 · The original sprint · September 10–13, 2026
This experimental indie game started when a Web Experts client wanted to explore 3D rendering for buildings. In September 2026, that led to a slightly harebrained question: how far could we push a frontier model and Unreal Engine before GTA VI arrived? The result has been described as the 1980s Paperboy game meeting GTA on Atlanta’s most popular bike path.
We digitized all of Atlanta’s most popular bike path, plus Piedmont Park and key parts of Midtown, into one connected Unreal Engine world. The first beta made the route playable from Midtown through Piedmont Park to Krog Street Tunnel; later builds opened more of the route we had already mapped.
The original 97 builds were created during an intense four-plus-day sprint with GPT-6 Astra running at high speed: 1.5 billion AI tokens processed during development, plus five usage resets, while studying the map, testing the route, and turning every section we could reach into gameplay.
That first sprint is where players joined the process. It brought the world to its first real testing point, and the current Windows + Mac beta continues the riding, combat, characters, art, balance, and performance work while expanding the map farther across Atlanta.
First sprint · September 10–13, 2026 · map data → Unreal Engine → game
We traced the real path network and road connections, projected them into one Unreal Engine coordinate system, and shaped terrain beneath those routes. Then we added collision, gravity, speed, ramps, jumps, traffic, crowds, and the other rules that turn the mapped city into a playable world.



Sprint 2 · Build 156 · September 17–19, 2026
This sprint was not just a Windows port. It was a full second pass across the game: refining how it rides, growing the skate park, rebuilding Murder K, turning Krog Street Tunnel into a real encounter, and finally making the Windows build. It ran on 2 billion AI tokens, primarily with DeepSeek Flash 4.1.
Riding, collisions, controls, and moment-to-moment flow got another pass on both platforms.
The Old Fourth Ward park grew into a much bigger rideable space with more bowls, a new west half, and a launch bank.
The storefront and riding plaza got a rebuild, and the whole encounter was stress-tested as the loudest stretch on the route.
The tunnel became a full hazard set with deep holes, shallow holes, columns, lighting, and a weave-through line.
The same Atlanta world now runs natively on Windows with keyboard and mouse controls.
Windows and Mac ship the same route, rules, and content, so a playtest on either platform tells us the same thing.



Current beta
Windows and Mac now share the same route and rules. Ride from Midtown into Piedmont Park, search for Ellison’s phone, and push toward Atlanta’s most popular bike path and Krog Street Tunnel while the city reacts around you.
Arcade and realistic bike modes, jumps, boosts, hills, lake swimming, spare bikes, and a route based on real Atlanta streets.
Pedestrians, scooters, zombies, gunfire, drones, police, potholes, dogs, traffic, and strange Atlanta encounters alter every run.
Testers can report confusing controls, crashes, bad collisions, performance problems, and moments that are fun enough to keep.
Optional · Stay in the loop
Downloading and playing never requires an account. If you want a one-time heads-up when the next Windows or Mac build drops, answer the questions below and we will email you when it is ready.
Free open beta
No account, no email, no code, and no private link. The beta is free and open to everyone: the Windows build is hosted on our public GitHub page and the Mac build installs through Apple TestFlight, so both stay open and update with each new build.
One ride through Build 096 — a one-minute edit from a continuous Mac playthrough, enjoy.
Download a free video game — on us
No signup, no email, and no code. Pick your platform and play — free. The Mac build installs through Apple TestFlight.
Windows: when you open the file, Windows may show a blue “Windows protected your PC” screen. Click More info, then Run anyway. The game is not signed yet, so that warning is normal.
Downloaded before 9 PM ET on September 20? Grab the Windows file again — we replaced it with a fixed, easier-to-launch build.
Already testing?
Use the full feedback form to report controls, crashes, map issues, performance, or ideas for the next build.