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PN Scripts

Game templates

Copperdeal Game Template

by PN Scripts

The complete source of Copperdeal, a twenty-one card game with one-use power cards, animated dealing and a bot that plays basic strategy through a full night in the smoke test.

  • 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
A hand in progress: the dealer shows one card face up, the player's hand total is shown below it and the hit, stand, double and split buttons wait

What it solves

The gap

Twenty-one looks simple, but splits, doubles, soft totals, dealer timing and card animation tangle quickly.

What it is

A tested, readable rules engine with an animation queue, power cards and a strategy bot you can reskin.

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 casino-style card game or twenty-one variant on itch.io, web portals or your site.
  • Learning how a complete twenty-one card game 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

Rules and flow

Hands, totals and payouts are pure functions; the deal, the player's turn, the dealer and the settlement are phases driven by a timed queue.

Copper powers

Each power is one branch in usePower with its own timing check, so adding a fifth power is a few lines.

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 Copperdeal 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.