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Ancient Brain
Code. Play. Teach. Learn. Research. Demo.

An online coding and hosting platform for everyone.

37 countries    2,350 coders    10,487 worlds    546,463 runs    3.5 million lines of code    Update stats

Competitive Hangman
427 runs ♦ 2 likes
By David Jusev  
Created: 5 Dec 2022
Modified: 17 Sep 2023
Play hangman against friends. Multi-user port of https://codingartistweb.com/2022/05/hangman-gam...
Ammo physics mod...
109 runs ♦ 0 likes
By Starter user  
Created: 19 Apr 2021
Modified: 17 Sep 2023
Highly modified version of "ammo / instancing" from Three.js examples
CA318 2018 World
2161 runs ♦ 3 likes
By Mark Humphrys  
Created: 25 Sep 2018
Modified: 11 Sep 2024
CA318 practical 2018: Write a Mind to solve this World.
Azure Image Desc...
151 runs ♦ 0 likes
By Suraksha Shetty  
Created: 25 Nov 2023
Modified: 11 Sep 2024
App to analyze images using the Computer Vision API from Microsoft Azure: https://learn.microsof...
An online coding platform

Ancient Brain is an online coding and hosting platform for everyone.
See Introduction and List of features.


Coders: Make 3D worlds and share them with friends. Clone and edit other people's worlds. Make multi-user games and environments. Make touch mobile games. Upload your own images, music and 3D models. Embed your worlds on other sites.
Teachers: Run courses in coding and coding for kids and AI coding. Run programming practicals in 3D graphics or 2D graphics or text, with many features designed for teachers. Safely edit and run student code.
Learners: Do courses in coding and coding for kids and AI coding. Clone other people's worlds and change one or two lines. What's the worst that could happen?
Gamers: Play the endless game worlds the coders make. Come and browse an ever-growing archive of games.
Researchers: Upload problems, tender for solutions, test and rank them. Make hybrid AI systems from the code of multiple authors.
Getting started
You can "run" any of the 10,500 programs or "Worlds" by clicking on them. But this is also a coding site, where you can code your own Worlds. You can use this site to learn to code. Or show off your creations if you are an experienced coder.
Basically you can read more about how to get started running Worlds and coding: Or you can leap straight into coding with our starter tutorial:
Programming course

Ancient Brain has a course in how to program from scratch.
You will get to make "Worlds" like the following. Click on them to run them.

Tutorial 7.8 variant
378 runs ♦ 0 likes
By "Coding Train" p...  
Created: 6 Sep 2018
Modified: 17 Sep 2023
Tutorial 7.8 with music and other uploaded images, including from other users. Click on the images.
Tutorial 2.5
169 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 17 Sep 2023
The random() Function
Tutorial 7.3
229 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Sep 2018
Modified: 17 Sep 2023
Arrays of Objects
Tutorial 2.1
558 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 17 Sep 2023
Variables in p5.js (mouseX, mouseY)
AI course

Ancient Brain has a set of AI programming exercises, with videos and notes. For use in any AI course.
You will get to modify "Worlds" like the following. Click on them to run them.

A star
4825 runs ♦ 2 likes
By "Coding Train" p...  
Created: 1 May 2019
Modified: 17 Sep 2023
"A Star" algorithm to find shortest path through maze.
GA (Finnegans Wake)
1024 runs ♦ 0 likes
By "Coding Train" p...  
Created: 2 May 2019
Modified: 17 Sep 2023
Genetic Algorithm to write the first line of Finnegans Wake.
Breadth-first se...
3362 runs ♦ 0 likes
By "Coding Train" p...  
Created: 30 Apr 2019
Modified: 17 Sep 2023
Breadth-first search with a Force-directed graph.
Character recogn...
1947 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Jul 2019
Modified: 17 Sep 2023
Neural network to do character recognition from image database and from handwriting in real-time.
WebGL course

Ancient Brain has a short course in JavaScript 3D graphics ("WebGL") programming.
You will get to make "Worlds" like the following. Click on them to run them.

Tutorial 18.7
422 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 17 Sep 2023
Tutorial 18.7 with full canvas, resized model, sound. Texture on box is image from another user.
Tutorial 18.5
96 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 17 Sep 2023
Camera and Perspective
Tutorial 18.3
67 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 17 Sep 2023
Light and Material
Tutorial 18.8
94 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 17 Sep 2023
3D Custom Shapes
Starter Worlds for Three.js

These are the main "Starter Worlds" that use the Three.js library (which tends to give the most advanced graphics).

You can Clone and Edit all of these and change their code. Look for a section at the top called the "Tweaker's Box". This contains the easiest things to change.

Zombie Death Baby
796 runs ♦ 1 like
By Starter user  
Created: 11 Jun 2018
Modified: 17 Sep 2023
How to make a fun touch game for mobile. Touch drag and tap objects. Mouse drag and click object...
Model World
861 runs ♦ 2 likes
By Starter user  
Created: 8 Nov 2016
Modified: 17 Sep 2023
Demo of how to insert 3d models into World. Mind-controlled agent, actively-pursuing enemy. Skybox.
Simple World
1709 runs ♦ 2 likes
By Starter user  
Created: 1 Oct 2016
Modified: 17 Sep 2023
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.
Websockets boxes
809 runs ♦ 0 likes
By Starter user  
Created: 29 Feb 2020
Modified: 17 Sep 2023
Demo of Websockets in 3D World. Click to change the boxes on the other user's machine, while the...
Castle World
799 runs ♦ 4 likes
By Starter user  
Created: 11 Nov 2016
Modified: 17 Sep 2023
Demo of how to insert 3d model into World. Mind-controlled agent, actively-pursuing enemy. Splas...
Complex World
8321 runs ♦ 5 likes
By Starter user  
Created: 1 Oct 2016
Modified: 17 Sep 2023
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.
Blank Three.js World
1723 runs ♦ 2 likes
By Starter user  
Created: 20 Nov 2016
Modified: 17 Sep 2023
A simple starter World. An Array of spheres. Painted with textures. Random motion.
MineCraft
1139 runs ♦ 2 likes
By Starter user  
Created: 27 Nov 2016
Modified: 17 Sep 2023
Use keyboard to draw blocks like in MineCraft. Use arrow keys and PgUp, PgDn to draw. Can save w...
User-controlled ...
956 runs ♦ 2 likes
By Starter user  
Created: 12 Feb 2017
Modified: 17 Sep 2023
3d model World. User controlled on desktop. Keyboard arrows to move. Switch to "Move with" camer...
Password Websock...
69 runs ♦ 0 likes
By Starter user  
Created: 14 Nov 2022
Modified: 17 Sep 2023
Password version of "Websockets boxes"
One Cube World (...
1196 runs ♦ 2 likes
By Starter user  
Created: 11 Apr 2018
Modified: 17 Sep 2023
Simple starter World (Three.js version). Built-in camera control.
Touch World
472 runs ♦ 1 like
By Starter user  
Created: 6 Jan 2018
Modified: 17 Sep 2023
How to override default touch handling. Mobile: Touch drag moves agent, touch pinch zooms camera...
Random Worlds

Here are some random Worlds that have had more than 30 runs. Reload for more.

One Cube World (...
98 runs ♦ 0 likes
By Masked One  
Created: 13 Dec 2023
Modified: 14 Dec 2023
Clone of "One Cube World (P5)" by TheMasked0ne
New World
155 runs ♦ 0 likes
By MENGTE ZHU  
Created: 15 Nov 2022
Modified: 16 Nov 2022
My First World
65 runs ♦ 0 likes
By Adam Gray  
Created: 20 Sep 2022
Modified: 17 Sep 2023
Cloned from Ancient Brain
Audio Speech Syn...
70 runs ♦ 0 likes
By duggano5  
Created: 27 Nov 2023
Modified: 11 Sep 2024
Artificial Intelligence Programming Interface
Hello World
65 runs ♦ 0 likes
By Anisa Hoxha  
Created: 22 Nov 2023
Modified: 11 Sep 2024
Clone of "Chat with GPT model" by Starter user
9Dots - One Cube...
34 runs ♦ 0 likes
By Terry D  
Created: 18 Feb 2019
Modified: 17 Sep 2023
Hello, Cube!
One Cube World (...
35 runs ♦ 0 likes
By Rajesh Dande  
Created: 17 Nov 2020
Modified: 17 Sep 2023
Clone of "One Cube World (Three.js)" by Starter user
Complex World 1 ...
885 runs ♦ 0 likes
By Rob Joscelyne  
Created: 4 Nov 2021
Modified: 17 Sep 2023
Clone of "Complex World" by Starter user
My wonderful world
40 runs ♦ 0 likes
By Jai Warde  
Created: 22 Oct 2020
Modified: 17 Sep 2023
I have no idea of Ancient World


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Call for partners!
Ancient Brain is looking for a partner to co-write a JavaScript coding book for schools, to be used worldwide. This would be a course for students in learning to code from scratch. The book and course will be integrated into the Ancient Brain site. This is an opportunity for someone looking to develop a course and textbook to partner with a site to promote it. Read more.