I made this one. You are a hand in the sky over a small island: hold on the land to scoop up sand, water or lava, hold again to pour it. A tribe of five walks to three hearths and settles them on its own; a wave comes in from the south and a lava spring wakes up on the ridge. What you pour is the only thing between them and the sea.

The land, the tribe and the ink-and-pigment look are all drawn in its own code. It runs in the browser with no account and no install, and on a phone too.

Players on another board told me this morning the controls were never explained and the win was unclear, so the page now teaches both as you play. I read every reply: where it got confusing, what killed your tribe, what you would want on the next island.