Ancient Brain

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

An online coding and hosting platform for everyone.

37 countries 2,329 coders 10,072 worlds 525,758 runs 3.3 million lines of code Update stats

Ammo physics mod...
108 runs ♦ 0 likes
By Starter user Ireland

Created: 19 Apr 2021
Modified: 17 Sep 2023
Highly modified version of "ammo / instancing" from Three.js examples

3D for Kids World
64 runs ♦ 0 likes
By Starter user Ireland

Created: 18 Apr 2021
Modified: 17 Sep 2023
Porting a Three.js World (almost) unchanged from "3D Game Programming for Kids"

MineCraft
1136 runs ♦ 2 likes
By Starter user Ireland

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...

FLESHMAN PLAYS G...
4608 runs ♦ 2 likes
By Sean Hutchinson
Created: 21 Oct 2016
Modified: 17 Sep 2023

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 10,077 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:

Getting started

Or you can leap straight into coding with our starter tutorial:

P5 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
376 runs ♦ 0 likes
By "Coding Train" p... United States

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
168 runs ♦ 1 like
By "Coding Train" p... United States

Created: 4 Sep 2018
Modified: 17 Sep 2023
The random() Function

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

Created: 4 Sep 2018
Modified: 17 Sep 2023
Variables in p5.js (mouseX, mouseY)

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

Created: 5 Sep 2018
Modified: 17 Sep 2023
Arrays of Objects

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.

A star
4350 runs ♦ 2 likes
By "Coding Train" p... United States

Created: 1 May 2019
Modified: 17 Sep 2023
"A Star" algorithm to find shortest path through maze.

Character recogn...
1920 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 5 Jul 2019
Modified: 17 Sep 2023
Neural network to do character recognition from image database and from handwriting in real-time.

GA (Finnegans Wake)
1021 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 2 May 2019
Modified: 17 Sep 2023
Genetic Algorithm to write the first line of Finnegans Wake.

Breadth-first se...
3314 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 30 Apr 2019
Modified: 17 Sep 2023
Breadth-first search with a Force-directed graph.

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 18.3
67 runs ♦ 0 likes
By "Coding Train" p... United States

Created: 9 Sep 2018
Modified: 17 Sep 2023
Light and Material

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

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

Created: 9 Sep 2018
Modified: 17 Sep 2023
3D Custom Shapes

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

Created: 9 Sep 2018
Modified: 17 Sep 2023
Camera and Perspective

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.

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

Created: 12 Feb 2017
Modified: 17 Sep 2023
3d model World. User controlled on desktop. Keyboard arrows to move. Switch to "Move with" camer...

MineCraft
1136 runs ♦ 2 likes
By Starter user Ireland

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...

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

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...

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

Created: 14 Nov 2022
Modified: 17 Sep 2023
Password version of "Websockets boxes"

Blank Three.js World
1709 runs ♦ 2 likes
By Starter user Ireland

Created: 20 Nov 2016
Modified: 17 Sep 2023
A simple starter World. An Array of spheres. Painted with textures. Random motion.

Castle World
797 runs ♦ 4 likes
By Starter user Ireland

Created: 11 Nov 2016
Modified: 17 Sep 2023
Demo of how to insert 3d model into World. Mind-controlled agent, actively-pursuing enemy. Splas...

Touch World
467 runs ♦ 1 like
By Starter user Ireland

Created: 6 Jan 2018
Modified: 17 Sep 2023
How to override default touch handling. Mobile: Touch drag moves agent, touch pinch zooms camera...

Complex World
8288 runs ♦ 5 likes
By Starter user Ireland

Created: 1 Oct 2016
Modified: 17 Sep 2023
World with a Mind-controlled agent, actively-pursuing enemy, random maze, skybox, music.

One Cube World (...
1192 runs ♦ 2 likes
By Starter user Ireland

Created: 11 Apr 2018
Modified: 17 Sep 2023
Simple starter World (Three.js version). Built-in camera control.

Simple World
1704 runs ♦ 2 likes
By Starter user Ireland

Created: 1 Oct 2016
Modified: 17 Sep 2023
Simple World with a Mind-controlled agent, randomly-moving enemy, paint blocks with texture.

Websockets boxes
806 runs ♦ 0 likes
By Starter user Ireland

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...

Model World
860 runs ♦ 2 likes
By Starter user Ireland

Created: 8 Nov 2016
Modified: 17 Sep 2023
Demo of how to insert 3d models into World. Mind-controlled agent, actively-pursuing enemy. Skybox.

Random Worlds

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

Binary tree (clo...
48 runs ♦ 0 likes
By Ethan Kavanagh
Created: 3 Oct 2023
Modified: 11 Sep 2024
Clone of "Binary tree" by "Coding Train" project

Perceptron (clon...
72 runs ♦ 0 likes
By Pavan Kirageri
Created: 4 Nov 2021
Modified: 17 Sep 2023
Clone of "Perceptron" by "Coding Train" project

A*_ChaseGame ( S...
153 runs ♦ 0 likes
By Shubham Shubham
Created: 28 Nov 2020
Modified: 17 Sep 2023
A* Chase Game _Clone of "Complex World"

Project (clone b...
135 runs ♦ 0 likes
By Rion Xheladini
Created: 5 Dec 2022
Modified: 17 Sep 2023
Clone of "Project" by Duarte Martinho

Practice 2- Char...
123 runs ♦ 0 likes
By Xin Zhang
Created: 5 Dec 2021
Modified: 17 Sep 2023
Clone of "Character recognition neural network (clone by Xin Zhang)" by Xin Zhang

ephreet
90 runs ♦ 0 likes
By ephreet Italy (Italia)

Created: 9 Jan 2019
Modified: 17 Sep 2023

hello world for ...
95 runs ♦ 0 likes
By makarand@123
Created: 22 Nov 2023
Modified: 11 Sep 2024
Hello World Program to show GPT demo

Character recogn...
89 runs ♦ 0 likes
By Aishwarya Ramesh
Created: 18 Nov 2021
Modified: 17 Sep 2023
Doodle Recognition- 21260609

Binary tree (clo...
39 runs ♦ 0 likes
By Marvin Opoku
Created: 4 Oct 2022
Modified: 17 Sep 2023
Clone of "Binary tree" by "Coding Train" project

19214589-charact...
36 runs ♦ 0 likes
By barry
Created: 22 Dec 2019
Modified: 17 Sep 2023
Clone of "Character recognition neural network" by "Coding Train" project

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Call for partners Contact

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.