I'm developing my own game engine based on HTML5. Today, I built a simple combat system. In this small game, you fight against orcs that respawn every second. You can move using the arrow keys and attack with the 'A' key.
Try it out when you have some free time:
https://jasongamedev.deno.dev/combat-test/simple
To be honest, it's not that fun—but it's a start! 😅