assetgen-assets

🌈 A showcase of spec files and AI-generated game art produced with assetgen.

This repo is only example content—think of it as a gallery + reference for anyone learning to write spec files or evaluating assetgen’s output quality. Each sub-folder is a self-contained sample project:

Folder	What it contains	Run-cost*
citygame	32 top-down road, car and building sprites (for a SimCity-style prototype)	≈ $5.48

*Costs are what we paid to the OpenAI Images API when the assets were generated.
Actual prices may differ if you re-generate with new models or larger sizes.

Using these samples

1. Clone with submodules (if you embedded this repo into a larger project):

   git submodule add https://github.com/hangovergames/assetgen-assets.git assets
   git submodule update --init

2. Inspect the spec—each project has an Assetgenfile describing the global prompt, per-asset prompts and any per-run configuration.

3. Re-generate (optional):

   # inside the project folder (e.g. citygame/)
   assetgen -n 10 Assetgenfile

4. Optimise (optional): after generation we run optipng -o7 *.png to squeeze the PNGs a bit.

Contributing samples

Have a cool spec you want to share?

1. Fork the repo, create a new folder (e.g. space-shooter/).
2. Commit your Assetgenfile, the generated images and a small README noting the API cost.
3. Open a pull request 🚀

Licence

All sample specs and generated images are released under the MIT License – see LICENSE.
You may use them in your own prototypes or games, though we recommend re-generating graphics for production so you can pick the quality / style you need.