Code robots. Win games.
thebotslam is a programming game for fun, whether you're writing your first loop or your ten-thousandth. Write code that makes your robots smarter, and win games of capture the flag, infiltrate, hide and seek and last one standing.
Use sensors, lasers, tunnelers, mortars, landmines, bug trackers, cloaking devices, rockets and more to gain an advantage. Pick the right mix of tracked, wheeled, flying and walking robots to conquer the terrain.
Start building, coding, competingFree: all your builds, coding, test matches, ladder and friendly matches. Tournaments are $5 a team, and the winner takes 80% of the pot.
CHS-L: tracks
Head north at full speed; lob a rocket ahead whenever the launcher is ready.
Open Brain code →Assembly for the bare metal, or C++, BASIC, Python, JavaScript, Lua, Java, C# and Blocks. Every bot runs on the same small CPU, so smart code beats big code. Test it in Brain code, then put it on the rated ladder.
Learn from working code
Dozens of short, commented samples, each in Python, JavaScript, Lua, C++, Java, C#, BASIC and assembly: drive and steer, sweep a scanner, aim a laser, lob a mortar, talk to your team, fly a drone.
Free: all your builds, coding, test matches, ladder and friendly matches. Your code stays in your own files.
Design machines in the Factory and save them here; build bots from them, or put one back on the platform to change it.
Each bot is built from one of your designs. Load one of its programs into it, or open it in Brain code to work on it on its machine.
This program is written in imperial units, so values below are in feet (the game gives it feet). Examples are written in metric: their numbers are metres.
An IDE (a code editor such as VS Code, PyCharm or IntelliJ) has many useful features: autocomplete, the docs for whatever's under your cursor, and mistakes underlined as you type. If you'd like to use your favorite IDE instead of thebotslam's code window, you'll need the API stubs: they tell your IDE about every part of your bot. Download the ones you need here:
bot.pyi for VS Code (Pylance) and PyCharmDownloadbot.d.ts and jsconfig.json for VS Code and WebStormDownloadBot.h for VS Code, CLion and the Arduino IDEDownloadbot package for IntelliJ IDEA, VS Code and EclipseDownloadBotArena.cs and a project for Visual Studio, Rider and VS CodeDownloadstd.s and notepad.sDownloadEach download has a README.md saying how to set it up, and REFERENCE.md, the whole API (the same as the Reference under the code). When your code's ready, open it here with Open file… in the Code tab to test it. In Chrome and Edge, it reloads by itself when you change it in your IDE and come back.
The game's languages are subsets made for a small bot CPU, so code your IDE is happy with can still be turned down here: the Code tab says why. The stubs follow the current API, so download them again after updates. More in the FAQ.
Only superusers manage house bots.
Gives a player two Capture the flag teams from each weight class: the bots, their designs, and their house programs (as files of theirs). Teams they already have are skipped.
Drag bots here from Search
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