Ancient Brain

Drag the background!

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

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

26 countries 1,927 coders 7,569 worlds 414,764 runs 2.7 million lines of code Update stats

Zombie Death Baby
716 runs ♦ 1 like
By Starter user Ireland

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...

Ammo physics demo
94 runs ♦ 0 likes
By Starter user Ireland

Created: 19 Apr 2021
Modified: 19 Apr 2021
Port of "ammo / instancing" from Three.js examples

Looney Tunes Cha...
1411 runs ♦ 2 likes
By Sean Sinnott
Created: 16 Nov 2016
Modified: 10 Feb 2018

Stack (Multiplayer)
498 runs ♦ 1 like
By Alexandru
Created: 6 Dec 2022
Modified: 6 Dec 2022

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 7,569 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.

How to code

Skip the intro, let us decide the library, and go straight to the starter tutorial (with videos):

Show me the 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 2.5
133 runs ♦ 1 like
By "Coding Train" p... United States

Created: 4 Sep 2018
Modified: 4 Sep 2018
The random() Function

Tutorial 2.1
483 runs ♦ 1 like
By "Coding Train" p... United States

Created: 4 Sep 2018
Modified: 4 Sep 2018
Variables in p5.js (mouseX, mouseY)

Tutorial 7.3
201 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 5 Sep 2018
Modified: 5 Sep 2018
Arrays of Objects

Tutorial 7.8 variant
335 runs ♦ 0 likes
By "Coding Train" p... United States

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.

Introduction to Programming

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.

Character recogn...
1542 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 5 Jul 2019
Modified: 2 Jul 2021
Neural network to do character recognition from image database and from handwriting in real-time.

A star
3004 runs ♦ 1 like
By "Coding Train" p... United States

Created: 1 May 2019
Modified: 21 Oct 2022
"A Star" algorithm to find shortest path through maze.

Breadth-first se...
1824 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 30 Apr 2019
Modified: 15 Dec 2019
Breadth-first search with a Force-directed graph.

GA (Finnegans Wake)
806 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 2 May 2019
Modified: 15 Dec 2019
Genetic Algorithm to write the first line of Finnegans Wake.

AI exercises

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 18.5
84 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 9 Sep 2018
Modified: 2 Jun 2019
Camera and Perspective

Tutorial 18.7
375 runs ♦ 0 likes
By "Coding Train" p... United States

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
56 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 9 Sep 2018
Modified: 9 Sep 2018
Light and Material

Tutorial 18.8
78 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 9 Sep 2018
Modified: 9 Sep 2018
3D Custom Shapes

WebGL course

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.

One Cube World (...
1041 runs ♦ 2 likes
By Starter user Ireland

Created: 11 Apr 2018
Modified: 21 Apr 2021
Simple starter World (Three.js version). Built-in camera control.

Model World
822 runs ♦ 2 likes
By Starter user Ireland

Created: 8 Nov 2016
Modified: 18 Apr 2021
Demo of how to insert 3d models into World. Mind-controlled agent, actively-pursuing enemy. Skybox.

Castle World
754 runs ♦ 4 likes
By Starter user Ireland

Created: 11 Nov 2016
Modified: 4 Jul 2021
Demo of how to insert 3d model into World. Mind-controlled agent, actively-pursuing enemy. Splas...

Websockets boxes
761 runs ♦ 0 likes
By Starter user Ireland

Created: 29 Feb 2020
Modified: 14 Nov 2022
Demo of Websockets in 3D World. Click to change the boxes on the other user's machine, while the...

Password Websock...
54 runs ♦ 0 likes
By Starter user Ireland

Created: 14 Nov 2022
Modified: 15 Nov 2022
Password version of "Websockets boxes"

Touch World
424 runs ♦ 1 like
By Starter user Ireland

Created: 6 Jan 2018
Modified: 18 Apr 2021
How to override default touch handling. Mobile: Touch drag moves agent, touch pinch zooms camera...

Complex World
7389 runs ♦ 3 likes
By Starter user Ireland

Created: 1 Oct 2016
Modified: 18 Apr 2021
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.

Blank Three.js World
1330 runs ♦ 2 likes
By Starter user Ireland

Created: 20 Nov 2016
Modified: 18 Apr 2021
A simple starter World. An Array of spheres. Painted with textures. Random motion.

MineCraft
1009 runs ♦ 2 likes
By Starter user Ireland

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...

Simple World
1511 runs ♦ 2 likes
By Starter user Ireland

Created: 1 Oct 2016
Modified: 18 Apr 2021
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.

Zombie Death Baby
716 runs ♦ 1 like
By Starter user Ireland

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...

User-controlled ...
804 runs ♦ 2 likes
By Starter user Ireland

Created: 12 Feb 2017
Modified: 18 Apr 2021
3d model World. User controlled on desktop. Keyboard arrows to move. Switch to "Move with" camer...

Random Worlds

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

Evade the Dog
225 runs ♦ 0 likes
By Ellen Kennedy
Created: 21 Nov 2016
Modified: 10 Feb 2018

Paint By Blocks ...
238 runs ♦ 0 likes
By Vanya Cadogan
Created: 24 Feb 2023
Modified: 5 Mar 2023
Clone of "Paint By Blocks v1 (Three.js)" by Vanya Cadogan

Character recogn...
63 runs ♦ 0 likes
By Sunil Jagtap
Created: 1 Dec 2021
Modified: 2 Dec 2021
Clone of "Character recognition neural network" by "Coding Train" project

Plant vs Zombie ...
345 runs ♦ 0 likes
By Md Shamsul Abedi...
Created: 14 Aug 2020
Modified: 22 Aug 2020
A_star Algorithm in 3D Visualization

AI Assignment- w...
134 runs ♦ 0 likes
By robby Ireland

Created: 16 Nov 2021
Modified: 5 Dec 2021
Trap oggy(agent) by usings roaches(enemy) using A* in hole

Practical A* Mov...
372 runs ♦ 0 likes
By Rajasi
Created: 11 Nov 2022
Modified: 4 Dec 2022
A* Complex world 2

webgl decals
154 runs ♦ 0 likes
By threejs.org port... Ireland

Created: 8 Sep 2021
Modified: 8 Sep 2021
this world shows how to put different planes to make a 3d model of a person. Can be painted by c...

Crop Image for T...
531 runs ♦ 0 likes
By jianyu
Created: 4 Dec 2020
Modified: 13 Dec 2020
to create similar between trainning image and predicte image

Complex World-II...
132 runs ♦ 0 likes
By Aparna
Created: 8 Nov 2022
Modified: 6 Dec 2022
Clone of "Complex World" by Starter user

Binary tree (clo...
66 runs ♦ 0 likes
By Mustafa Kamal
Created: 4 Oct 2022
Modified: 4 Oct 2022
Clone of "Binary tree" by "Coding Train" project

The background is a program, showing the JavaScript graphics used on this site.
The globes light up when you log in.

Font:

Users retain ownership of user content.

Platforms Stats The name Terms and conditions

Call for partners Contact

Call for partners!

Ancient Brain is looking for partners. In particular, we seek a partner in writing a JavaScript coding book for schools, to be used worldwide. We will integrate your course 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.