3D games you can play in the browser

These games draw a real 3D world in the browser tab, with nothing to install and no plugin, and they could hardly be more different from each other. Facet Circuit is a low-poly time trial: one standing lap of a circuit against a translucent ghost of your own best, with automatic throttle, a brake, three sector splits and gold, silver and bronze times on four circuits that unlock in order. Corridor Vault is a first-person maze walked one cell at a time, where coloured doors are locked, the key is always off the direct route, and a lamp that burns with every step decides how far you can see. Vaults grow from small 7×7 mazes to 13×13 with three doors. Skyweave is a hot air balloon flight over real districts of Hanoi and Đà Nẵng, a coastline, mountains and dunes, steered only by climbing and sinking into air moving the way you want to go. All three save progress in the browser, from ghost laps and medals to banked coins and found landmarks, and each one has touch controls laid out for two thumbs on a phone.

Questions

Do these 3D games need a powerful computer?

They are built to run in an ordinary browser tab and have touch controls for phones. Performance on older devices has not been measured here, so if one runs slowly, closing other tabs is a sensible first step.

Do they save progress?

Yes, in this browser. Facet Circuit keeps best laps, ghosts and medals, Corridor Vault keeps coins, your deepest vault and the run in progress, and Skyweave keeps threads, gear and landmarks found.