littleguys.

drop a little guy anywhere in a real city and watch him wander: he walks the actual street network from OpenStreetMap, and at every real intersection he turns down a random direction, no plan, no destination. asked for by @cee.wtf — bonus points meant dropping up to 500 of them at once, so that's the max here. then they came back asking to ramp the count and the sim speed higher than should reasonably be possible, so there's a wumbo mode for that now too.

little guy settings
one gets a face and a running commentary on which street he's on. more than a handful and it's dots — up to 500 of them, or more with wumbo mode below.
rough target distance before each one calls it a day — real ones vary a bit so they don't all stop in lockstep.
unlocks up to 20,000 little guys and up to 50× sim speed. higher than you think should be possible. turn it off and both snap back to sane.