Peli.
Drive a city. The ground is not flat.
Playing
The client is a native build; there is no browser version. Point it at
peli.gg, choose Create an account on the login
screen, and pick a name and password. The only things stored are that
name and an Argon2id hash of the password — there is no email, no
recovery, and no way to get the account back if the password is lost.
What is running
A login service, one or more gateways, a chat service and the world simulation, each on its own host. The gateways are what a client actually talks to; everything behind them is private. The status page shows each daemon's health and is password-protected, because those endpoints publish more about the internals than belongs in public.
Status
If something looks wrong, the tier reports it honestly rather than optimistically: a world being down is degraded, not dead, and you can still log in and chat while it is.