Try Fire Lab free in your browser, with nothing to install and no account. Build a campfire that behaves like a real one. Sort the wood with the pencil test, lay a teepee, a lean-to, a log cabin, a star or a top-down, and put a match to it. Tinder flashes, packed kindling smothers, wind blows a match out and throws embers past the ring, and dirt on the coals keeps them hot until morning. Drown it, stir it, feel it. A safe place to get it wrong first; the real fire needs an adult.