Starbase Simulator: V3 is an unofficial, fan-made simulation of a full Super Heavy / Starship V3 mission — the current generation of the vehicle, hence the name — free in your browser with no download and no account. You are not the rocket, you are the flight director: the go/no-go polls, the weather calls, the abort decisions, and the nerve to commit two hundred tonnes of stainless steel to a catch between two moving arms.
A complete flight runs from propellant load through liftoff on 33 engines, hot-staging, the booster's chopstick catch, and the ship's entry, bellyflop and second catch on the same tower — with time compression up to 150×. Everything is 100% procedural and deterministic. More on the About page and the Flight Manual.
The launch site is modelled as a working facility, not a backdrop. The water deluge runs a real activation sequence — detonation-suppression pulses, the trench opening at T−15, the water-cooled deck at T−8, both building to full pressure by T−2 — and the farm that feeds it tracks every litre, live on your HUD, through launch and both catch deluges. Cryogenic boil-off pools around the tank farm while a frost line climbs the vehicle as propellant loads. At ignition, a high-pressure white cloud rips outward ahead of the dust.
The game is free with ads on this site. The one-time Mission Control Pass unlocks Sandbox mode — pick your mission, weather, time of day, anomaly rate and seed — and removes all ads, forever. It is a purchase, not a subscription.
Get the Pass — $4.20