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How to code P5 Tutorial (P5)
How to code Three.js Tutorial (Three.js)
Coding course Coding course II Coding for kids WebGL course AI exercises
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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.

23 countries    1,706 coders    5,261 worlds    285,697 runs    1.7 million lines of code    Update stats

Interstellar cubes
484 runs ♦ 3 likes
By Thomas Mc Cann  
Created: 16 Oct 2019
Modified: 3 Nov 2019
A journey into Interstellar space. Run and press F12 (in chrome) to view the console. Try left c...
Cells
124 runs ♦ 0 likes
By Enhanced  
Created: 27 Jun 2018
Modified: 27 Jun 2018
'Cells' is an animation that displays 4 team of cells trying to infect each other, until total d...
Chess : Mind v...
752 runs ♦ 0 likes
By Enhanced  
Created: 17 Aug 2018
Modified: 10 May 2019
Clone of "Chess : Mind vs Simple AI (a bit of random)" by Mathias Bazin
Breadth-first se...
518 runs ♦ 0 likes
By "Coding Train" p...  
Created: 30 Apr 2019
Modified: 15 Dec 2019
Breadth-first search for "Six Degrees of Kevin Bacon".
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 5,261 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
371 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
Variables in p5.js (mouseX, mouseY)
Tutorial 2.5
76 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
The random() Function
Tutorial 7.3
155 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Sep 2018
Modified: 5 Sep 2018
Arrays of Objects
Tutorial 7.8 variant
287 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.

GA (Finnegans Wake)
596 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.
A star
2038 runs ♦ 1 like
By "Coding Train" p...  
Created: 1 May 2019
Modified: 21 Oct 2021
"A Star" algorithm to find shortest path through maze.
Character recogn...
1122 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...
1138 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 18.8
52 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 9 Sep 2018
3D Custom Shapes
Tutorial 18.3
25 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 9 Sep 2018
Light and Material
Tutorial 18.7
339 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 18.5
59 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 2 Jun 2019
Camera and Perspective
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.

Model World
662 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.
User-controlled ...
617 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...
Blank Three.js World
1134 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.
Touch World
354 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...
Zombie Death Baby
550 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...
Complex World
6302 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.
Websockets boxes
250 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...
Simple World
1358 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.
Castle World
612 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...
MineCraft
831 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...
One Cube World (...
890 runs ♦ 2 likes
By Starter user  
Created: 11 Apr 2018
Modified: 21 Apr 2021
Simple starter World (Three.js version). Built-in camera control.
Random Worlds

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

A star (clone by...
20 runs ♦ 0 likes
By Samaksh Chandra  
Created: 21 Oct 2021
Modified: 21 Oct 2021
Clone of "A star" by "Coding Train" project
One Cube World (...
11 runs ♦ 0 likes
By Ayush Bhatt  
Created: 30 Sep 2021
Modified: 7 Oct 2021
Clone of "One Cube World (P5) (clone by Ayush Bhatt) (cloned by Ayush Bhatt)" by Ayush Bhatt
Assignment 2 - J...
601 runs ♦ 0 likes
By J Faj  
Created: 26 Nov 2019
Modified: 20 Dec 2019
Update neural network for character recognition
Complex World (c...
16 runs ♦ 0 likes
By StevenMacManus  
Created: 24 Nov 2020
Modified: 27 Nov 2020
Clone of "Complex World" by Starter user
Superman 2 - Zod...
54 runs ♦ 0 likes
By Tony Forde  
Created: 28 Sep 2021
Modified: 26 Nov 2021
Particles rotating in space
Tutorial 4.2 (0)
13 runs ♦ 0 likes
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
Nested Loops
Character recogn...
264 runs ♦ 0 likes
By Andrey Totev  
Created: 28 Nov 2020
Modified: 12 Dec 2020
Practical by Andrey Totev
Complex World (c...
396 runs ♦ 0 likes
By Aoife Doherty  
Created: 22 Nov 2020
Modified: 22 Nov 2020
Clone of "Complex World" by Starter user
Binary Tree
74 runs ♦ 0 likes
By Harpreet Singh  
Created: 8 Oct 2019
Modified: 8 Oct 2019
Clone of "Binary tree" by "Coding Train" project
Joe's One Cube World
58 runs ♦ 0 likes
By Joe Rathborne  
Created: 6 Nov 2018
Modified: 7 Nov 2018
One Cube World for learning


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