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PN Scripts

Game templates

Wallbarrow Game Template

by PN Scripts

The complete source of Wallbarrow, a maze-building tower defence with breadth-first-search pathing and three maps; the smoke test proves a bot holds all 20 waves of a map.

  • JavaScript
  • Canvas 2D
  • Web Audio
  • Playwright
  • Coming soon

Coming soon

Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.

Game templates
The first walls of a maze on Barrow Ford, the track bending around them towards the keep

What it solves

The gap

Open-field tower defence needs pathfinding that reacts to every build, a fair rule against sealing the path, and enemies that never get stuck.

What it is

This template gives you a BFS flow field, a blocking check, three towers, five enemies and a finished game around them.

How you use it

Unzip, serve the folder and open index.html, then edit game.js; npm test plays it again in headless Chrome.

Source code of a real, playable game to reskin and learn from, with a smoke test whose bot plays it.

Who it is for

Use it when

  • Publishing your own maze-building tower defence on itch.io, web portals or your site.
  • Learning how a complete maze-building tower defence is built in plain JavaScript and Canvas 2D.
  • Building a branded mini-game for a client.

Built for

  • Web and indie game developers who know some JavaScript.
  • Developers who want a finished, tested game to build on instead of a blank canvas.

What you get

Maps

Each map is 11 rows of text with '.', 'R', 'G' and 'K'; add one to MAPS with a bot plan of wall lines.

Balance

TOWERS and ENEMIES are plain tables, and waveList(w) builds each wave, so tuning is a few numbers.

No build step

Plain JavaScript and Canvas 2D with no runtime dependencies; open index.html through any static server and edit game.js.

A smoke test

A headless Chrome test loads the game, checks the console, presses keys and taps, and lets the built-in bot play a run to its result screen.

Specs

Availability
Coming soon
Vendor
PN Scripts
Type
Template
Platforms
JavaScript
Pricing
One-time purchase Price to be announced.
License
PN Scripts Template Licence 1.0
Deployment
Download (ZIP of source code)
Maturity
v1.0.0

Compatibility

Platform or runtime Supported versions Tested up to
Node.js 22.12 or newer Not stated

Stack

  • JavaScript
  • Canvas 2D
  • Web Audio
  • Playwright

The Wallbarrow template is coming soon

The template is finished and tested. It is not on sale yet; this page will say where to get it when it is.

Coming soon

Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.

Questions

Make and sell any number of your own games from it, and build games for clients. You may not resell or share the source code itself (PN Scripts Template Licence 1.0).

Any static web server to run the game, and some JavaScript. Node.js 22.12 or newer and Google Chrome run the smoke test.

No ad or portal SDK, and English only. It is tested in desktop Chrome and a phone-sized Chrome viewport with touch, not yet on iOS Safari, Firefox or a real phone.

The code was written with AI assistance and checked by PN Scripts with automated tests. All visuals and sounds are generated by code; there are no AI-generated image or audio files.

It is not on sale yet. When it is, this page will link to the store; PN Scripts does not take payment on this site.