Hi there! Yes, absolutely. There's an expanded version also free/pwyw that expands a little bit what's here and explicitly creative commons. Would love to see whatever you do.
Thanks for the detailed feedback, and advice. This is really helpful. I am actually working on an expanded version now, but I will give the combat a good review and see how to best modify it.
Thanks! Hope it works well for you! Quick exploration sessions is exactly what I use it for. Would be great to hear how it goes. Open to any feedback for future versions.