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

Our goal: To become one of the most fun places in the world to code.

24 countries    1,860 coders    5,644 worlds    298,350 runs    1.8 million lines of code    Update stats

Game of Crowns
2051 runs ♦ 2 likes
By Niamh Byrne  
Created: 16 Nov 2016
Modified: 10 Feb 2018
Tutorial 7.8 variant
313 runs ♦ 0 likes
By "Coding Train" p...  
Created: 6 Sep 2018
Modified: 11 Sep 2018
Tutorial 7.8 with music and other uploaded images, including from other users. Click on the images.
Binary tree
1830 runs ♦ 0 likes
By "Coding Train" p...  
Created: 25 Apr 2019
Modified: 15 Dec 2019
Binary tree search demo.
Expo World
173 runs ♦ 0 likes
By Mark Humphrys  
Created: 17 Oct 2018
Modified: 24 Mar 2019
Infinite changing demo for expos.
An online coding platform

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


Coders: Make 3D worlds and share them with friends. Clone and edit other people's worlds. Make touch mobile games. Embed your worlds on other sites.
Teachers: Run courses in coding and coding for kids and AI coding. Run programming practicals in 3D or 2D 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.
Enough talk. Show me a video!

OK, here is a high-level introduction.
This does not assume you have ever coded, or ever heard of JavaScript graphics (what is behind this site).

How to code
You can "run" any of the 5,644 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.
Click below to learn how to code on this site. Basically, there is a choice of "libraries" that you can use. Skip the intro, let us decide the library, and go straight to the starter tutorial (with videos):
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 2.1
446 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
Variables in p5.js (mouseX, mouseY)
Tutorial 2.5
112 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
The random() Function
Tutorial 7.3
181 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Sep 2018
Modified: 5 Sep 2018
Arrays of Objects
Tutorial 7.8 variant
313 runs ♦ 0 likes
By "Coding Train" p...  
Created: 6 Sep 2018
Modified: 11 Sep 2018
Tutorial 7.8 with music and other uploaded images, including from other users. Click on the images.
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
2316 runs ♦ 1 like
By "Coding Train" p...  
Created: 1 May 2019
Modified: 21 Oct 2021
"A Star" algorithm to find shortest path through maze.
GA (Finnegans Wake)
633 runs ♦ 0 likes
By "Coding Train" p...  
Created: 2 May 2019
Modified: 15 Dec 2019
Genetic Algorithm to write the first line of Finnegans Wake.
Character recogn...
1293 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Jul 2019
Modified: 2 Jul 2021
Neural network to do character recognition from image database and from handwriting in real-time.
Breadth-first se...
1254 runs ♦ 0 likes
By "Coding Train" p...  
Created: 30 Apr 2019
Modified: 15 Dec 2019
Breadth-first search with a Force-directed graph.
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
355 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 11 Sep 2018
Tutorial 18.7 with full canvas, resized model, sound. Texture on box is image from another user.
Tutorial 18.3
33 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 9 Sep 2018
Light and Material
Tutorial 18.5
65 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 2 Jun 2019
Camera and Perspective
Tutorial 18.8
57 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 9 Sep 2018
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.

Complex World
6676 runs ♦ 3 likes
By Starter user  
Created: 1 Oct 2016
Modified: 18 Apr 2021
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.
Simple World
1435 runs ♦ 2 likes
By Starter user  
Created: 1 Oct 2016
Modified: 18 Apr 2021
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.
MineCraft
888 runs ♦ 2 likes
By Starter user  
Created: 27 Nov 2016
Modified: 4 Jul 2021
Use keyboard to draw blocks like in MineCraft. Use arrow keys and PgUp, PgDn to draw. Can save w...
Castle World
636 runs ♦ 4 likes
By Starter user  
Created: 11 Nov 2016
Modified: 4 Jul 2021
Demo of how to insert 3d model into World. Mind-controlled agent, actively-pursuing enemy. Splas...
User-controlled ...
673 runs ♦ 2 likes
By Starter user  
Created: 12 Feb 2017
Modified: 18 Apr 2021
3d model World. User controlled on desktop. Keyboard arrows to move. Switch to "Move with" camer...
Zombie Death Baby
583 runs ♦ 1 like
By Starter user  
Created: 11 Jun 2018
Modified: 4 Jul 2021
How to make a fun touch game for mobile. Touch drag and tap objects. Mouse drag and click object...
Websockets boxes
267 runs ♦ 0 likes
By Starter user  
Created: 29 Feb 2020
Modified: 4 Jul 2021
Demo of Websockets in 3D World. Click to change the boxes on the other user's machine, while the...
One Cube World (...
985 runs ♦ 2 likes
By Starter user  
Created: 11 Apr 2018
Modified: 21 Apr 2021
Simple starter World (Three.js version). Built-in camera control.
Model World
687 runs ♦ 2 likes
By Starter user  
Created: 8 Nov 2016
Modified: 18 Apr 2021
Demo of how to insert 3d models into World. Mind-controlled agent, actively-pursuing enemy. Skybox.
Touch World
367 runs ♦ 1 like
By Starter user  
Created: 6 Jan 2018
Modified: 18 Apr 2021
How to override default touch handling. Mobile: Touch drag moves agent, touch pinch zooms camera...
Blank Three.js World
1270 runs ♦ 2 likes
By Starter user  
Created: 20 Nov 2016
Modified: 18 Apr 2021
A simple starter World. An Array of spheres. Painted with textures. Random motion.
Random Worlds

Here are some random Worlds that have had more than 10 runs. Reload for more.

Breadth-first se...
109 runs ♦ 0 likes
By Xin Zhang  
Created: 30 Oct 2021
Modified: 31 Oct 2021
Clone of "Breadth-first search " by "Coding Train" project
A star (clone by...
59 runs ♦ 0 likes
By Sharmistha  
Created: 21 Oct 2021
Modified: 6 Nov 2021
Clone of "A star" by "Coding Train" project
Chess
59 runs ♦ 0 likes
By Mathias Bazin  
Created: 24 Jul 2018
Modified: 10 May 2019
Chess using chess.js. Plays a random game
Binary tree (clo...
63 runs ♦ 0 likes
By Paul R  
Created: 24 Sep 2022
Modified: 24 Sep 2022
Clone of "Binary tree" by "Coding Train" project
Space Pong
1150 runs ♦ 0 likes
By Igor Strelkov  
Created: 21 Nov 2016
Modified: 10 Feb 2018
pick your textur...
82 runs ♦ 0 likes
By tom  
Created: 27 Nov 2016
Modified: 10 Feb 2018
A* Practical(Tra...
297 runs ♦ 0 likes
By Pratiksha Biradar  
Created: 27 Nov 2020
Modified: 13 Dec 2020
CA 686I Practical 1
Actual Cloned CA...
35 runs ♦ 0 likes
By perd  
Created: 15 Nov 2018
Modified: 19 Nov 2018
Clone of "Cloned CA318 2018 World" by cdaly
Mahabharata
501 runs ♦ 0 likes
By Vrushali Golde  
Created: 29 Oct 2021
Modified: 5 Dec 2021
Clone of "Complex World" by Starter user
New Complex World
26 runs ♦ 0 likes
By Md Shamsul Abedi...  
Created: 14 Aug 2020
Modified: 14 Aug 2020
brendan-shamsul


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Call for partners!
If you are interested in writing a programming course, textbook or tutorial videos, Ancient Brain is looking for partners. We will work with you, and integrate your course into the site. This is an opportunity for someone looking to develop a course or textbook to partner with a site to support it and promote it.