Source: https://github.com/jakesgordon/javascript-tower-platformer
Original host: https://jakesgordon.com/games/tower-platformer/
Editorial image: https://jakesgordon.com/writing/rotating-tower-platformer/thumb.png
Credit: jakesgordon and project contributors.
Checked: 2026-10-27.
This site links to the original game; no game code or audio is republished. Artwork may have terms separate from code.

Repository license notice:
Copyright (c) 2013, 2014, 2015, 2016 Jake Gordon and contributors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


README / artwork and usage context:
Javascript Tower Platformer
===========================

An HTML5 rotating-tower platform game inspired by the old c64 game "Nebulus"

 * [play the game](https://jakesgordon.com/games/tower-platformer/)
 * [read more](https://jakesgordon.com/writing/rotating-tower-platformer/)
 * [view the source](https://github.com/jakesgordon/javascript-tower-platformer)

SUPPORTED BROWSERS
==================

Should work in any modern browser with canvas support

DEVELOPMENT
===========

The game is 100% client side javascript, html and css. It should run when served up by any web server.

FUTURE FEATURES
===============

 * level exit
 * game menu
 * multiple levels
 * dissolving platforms
 * elevators
 * shortcut doors
 * countdown timer
 * mobile touch support
 * sound fx and music

TECH DEBT
=========

 * should use an FSM to manage player state (standing/left/right/falling/climbing/hurt/etc)
 * allow monsters to overlap (make cell.monster an array instead of single object)
 * use images for tower gradient and platforms (instead of raw ctx stroke/fill calls)
 * direction-agnostic monster sprites (abstract)
 * tiny gap in ground rendering in FF/IE where image wraps (need to render image on (0.5, 0.5) boundaries)

License
=======

[MIT](http://en.wikipedia.org/wiki/MIT_License) license.