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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.

18 countries    1,496 coders    2,729 worlds    168,496 runs    0.9 million lines of code    Update stats

Complex World
3595 runs ♦ 3 likes
By Starter user  
Created: 1 Oct 2016
Modified: 1 Oct 2020
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.
Simple World
1252 runs ♦ 2 likes
By Starter user  
Created: 1 Oct 2016
Modified: 1 Oct 2020
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.
Websocket buttons
40 runs ♦ 0 likes
By Starter user  
Created: 29 Feb 2020
Modified: 1 Oct 2020
Demo of Ancient Brain Websockets functionality. Run on multiple devices. Simple page uses button...
Game of Crowns s...
125 runs ♦ 0 likes
By Enhanced  
Created: 21 Jun 2018
Modified: 27 Aug 2018
Enhanced version of "Game of Crowns" by Niamh Byrne with better graphics and controls
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 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 7.8 variant
238 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.
Tutorial 7.3
116 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Sep 2018
Modified: 5 Sep 2018
Arrays of Objects
Tutorial 2.1
268 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
Variables in p5.js (mouseX, mouseY)
Tutorial 2.5
44 runs ♦ 1 like
By "Coding Train" p...  
Created: 4 Sep 2018
Modified: 4 Sep 2018
The random() Function
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)
438 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.
Breadth-first se...
602 runs ♦ 0 likes
By "Coding Train" p...  
Created: 30 Apr 2019
Modified: 15 Dec 2019
Breadth-first search with a Force-directed graph.
Character recogn...
487 runs ♦ 0 likes
By "Coding Train" p...  
Created: 5 Jul 2019
Modified: 15 Dec 2019
Neural network to do character recognition from image database and from handwriting in real-time.
A star
754 runs ♦ 1 like
By "Coding Train" p...  
Created: 1 May 2019
Modified: 15 Dec 2019
"A Star" algorithm to find shortest path through maze.
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
292 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
49 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 2 Jun 2019
Camera and Perspective
Tutorial 18.3
15 runs ♦ 0 likes
By "Coding Train" p...  
Created: 9 Sep 2018
Modified: 9 Sep 2018
Light and Material
Tutorial 18.8
31 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.

Touch World
309 runs ♦ 1 like
By Starter user  
Created: 6 Jan 2018
Modified: 1 Oct 2020
How to override default touch handling. Mobile: Touch drag moves agent, touch pinch zooms camera...
MineCraft
671 runs ♦ 2 likes
By Starter user  
Created: 27 Nov 2016
Modified: 1 Oct 2020
Use keyboard to draw blocks like in MineCraft. Use arrow keys and PgUp, PgDn to draw. Can save w...
User-controlled ...
500 runs ♦ 2 likes
By Starter user  
Created: 12 Feb 2017
Modified: 1 Oct 2020
3d model World. User controlled on desktop. Keyboard arrows to move. Switch to "Move with" camer...
Websockets boxes
155 runs ♦ 0 likes
By Starter user  
Created: 29 Feb 2020
Modified: 1 Oct 2020
Demo of Websockets in 3D World. Click to change the boxes on the other user's machine, while the...
Zombie Death Baby
446 runs ♦ 1 like
By Starter user  
Created: 11 Jun 2018
Modified: 1 Oct 2020
How to make a fun touch game for mobile. Touch drag and tap objects. Mouse drag and click object...
Blank Three.js World
963 runs ♦ 2 likes
By Starter user  
Created: 20 Nov 2016
Modified: 1 Oct 2020
A simple starter World. An Array of spheres. Painted with textures. Random motion.
One Cube World (...
783 runs ♦ 2 likes
By Starter user  
Created: 11 Apr 2018
Modified: 1 Oct 2020
Simple starter World (Three.js version). Cube of random color. Built-in camera control.
Model World
598 runs ♦ 2 likes
By Starter user  
Created: 8 Nov 2016
Modified: 1 Oct 2020
Demo of how to insert 3d models into World. Mind-controlled agent, actively-pursuing enemy. Skybox.
Castle World
520 runs ♦ 4 likes
By Starter user  
Created: 11 Nov 2016
Modified: 1 Oct 2020
Demo of how to insert 3d model into World. Mind-controlled agent, actively-pursuing enemy. Splas...
Complex World
3595 runs ♦ 3 likes
By Starter user  
Created: 1 Oct 2016
Modified: 1 Oct 2020
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.
Simple World
1252 runs ♦ 2 likes
By Starter user  
Created: 1 Oct 2016
Modified: 1 Oct 2020
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.
Random Worlds

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

Cloned Complex World
22 runs ♦ 0 likes
By tom  
Created: 16 Oct 2016
Modified: 10 Feb 2018
Complex World (c...
14 runs ♦ 0 likes
By Nihar Behera  
Created: 6 Nov 2019
Modified: 6 Nov 2019
Clone of "Complex World" by Starter user
Comments, Types ...
25 runs ♦ 0 likes
By gmac1011  
Created: 20 May 2019
Modified: 20 May 2019
Clone of "Comments, Types & Variables World" by Alex Murphy
"><img src=x one...
23 runs ♦ 0 likes
By LOLO  
Created: 27 Nov 2018
Modified: 27 Nov 2018
Cloned Cloned CA...
190 runs ♦ 0 likes
By milesj2  
Created: 26 Nov 2018
Modified: 27 Nov 2018
Clone of "Cloned CA318 2018 World" by cdaly
5. Methods and C...
274 runs ♦ 0 likes
By Alex Murphy  
Created: 4 Apr 2019
Modified: 8 Jun 2019
JavaScript Methods and Calculations
lamborghini 7 de...
54 runs ♦ 0 likes
By test2  
Created: 7 Dec 2018
Modified: 5 Apr 2019
boring cube does nothing
Trap The Enemy(L...
155 runs ♦ 0 likes
By Seamus Kelly  
Created: 9 Dec 2016
Modified: 10 Feb 2018
New Infinite Wor...
197 runs ♦ 0 likes
By Nathan Bonnard  
Created: 5 Jun 2018
Modified: 13 Jun 2018
New World. Starting from scratch.
A-maze-ing World
76 runs ♦ 0 likes
By Conor Smyth  
Created: 26 Oct 2016
Modified: 10 Feb 2018


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Users retain copyright of their own content.
Ancient Brain ™ is a trademark of Ancient Brain Ltd.

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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.