Boost City

Boost City is a free sandbox game made with AI by @belugalcc, and you can play it right here in your browser.

Boost City is an open-world action sandbox where everything with wheels or wings is yours for the taking. Walk out into a golden-hour downtown, press E, and drive away — parked sedans, speeding taxis, a police cruiser idling on the corner. If a civilian is already driving it, yank them out and watch them scatter.

The city is alive: traffic follows real routes through the street grid, pedestrians wander the sidewalks and flee when guns come out, and the airport east of downtown always has a prop plane waiting on the apron. Take off down the runway, bank between the orange fly-through gates, chase the horizon over the skyline — or lift the helicopter off its pad and thread it between the towers.

Your contract list is simple: steal a moving car, push one past 130 km/h, take a plane a hundred meters up, fly through both airport gates, and land the chopper on the downtown rooftop helipad. Do all five and the city crowns you a Boost City Legend. Armed with a pistol and an AK, chased only by your own ambition — the whole map, from the boulevards to the runway lights, is one big playground.