There is an old game called Oil Barons, which I think has that minigame. en.wikipedia.org/wiki/Oil_Bar... The one which is my starting point, looks like this. Gorgeuos isn't it? :)
Thomas Viktil
@mandarin.bsky.social
186 followers 609 following 39 posts
Co-founder, Technical director and CEO of @rubarb.bsky.social. Making a game called Basalt: The Cursed Vein. Recent Godot convertee.