Mayor 4000 vs RoboSimL

Mayor 4000 is a pure city-building simulation made for mobile. No timers. No energy. No resource grinding. Build, zone, and manage your dream city. Start with a small town and grow it into a thriving metropolis where every citizen, job, and traffic jam is simulated month by month. You're the mayor. Every decision is yours: • Zone & grow — Lay out residential, commercial, and industrial zones and let neighborhoods rise on their own, from low-density streets to towering high-rises, as demand, land value, and desirability allow. • Build the infrastructure — Streets, avenues, highways, rail, subways, power grids, and water networks your citizens depend on. • Run the services — Police, fire, health, schools and universities, parks and landmarks. Fund them well, or watch your coverage crumble. • Balance the books — A real supply-and-demand economy links homes, shops, and factories. Set taxes, pass ordinances, issue bonds. • Survive disasters — Fires, earthquakes, floods, and tornadoes strike a living city. Rebuild from the rubble. • Keep them happy — Pollution, crime, traffic, and unemployment all matter. City reports, alerts, and resident requests keep the pressure on your decisions. • Expand your region — Connect multiple cities across an entire region and grow them together. Play your way: • No resource grinding, no waiting timers, no energy bars — open the game and build. • A true sandbox — no forced quests or objectives. Your city, your rules, your pace. • Deep, offline-friendly gameplay you can pick up anytime. Built for mobile: • Runs smoothly even on huge, densely packed cities, thanks to a from-scratch simulation engine. • One-handed, touch-first controls. No two cities are ever the same — build a leafy green suburb, a dense downtown, or an industrial powerhouse and make it your own. Every city tells a different story. Start building yours today.

A driving practice tool for competition robotics teams. Every robot in the app began as a team's own CAD. Each one is rebuilt part by part — real joints, real pivots, real drivetrain geometry — so what you drive on your phone moves the way the machine on the field moves. DRIVE Twin on-screen sticks and a set of mechanism buttons. Pick a robot, tap Drive, and you are on a full-size field with cups, pins and toggles to rotate. MECHANISMS THAT WORK LIKE THE REAL ONES Claws open and close and actually hold a game piece. Cascade lifts and double reverse four-bars run through their real travel. Pneumatic cylinders snap between two positions the way a solenoid does, in the real 25 / 50 / 75 mm stroke classes. Intakes pull pieces in. Nothing here is an animation — each mechanism is a physics joint being driven by a motor model. PHYSICS TUNED AGAINST THE MACHINE Wheel speed is set from the drivetrain's real free-spin RPM. Slam the sticks into reverse and the robot plows to the traction limit instead of stopping dead. Raise a lift and the robot rolls in turns, exactly as a tall robot does. Robots have real mass, and a heavy arm out front changes how the whole thing drives. CONTROLS YOU CAN MAKE YOURS Resize the sticks, change their opacity, drag every button where your thumbs actually are, and reassign what each one does. Switch a mechanism between one-button toggle and two-button hold. Set drive and turn sensitivity. Choose which end of the robot the sticks treat as the front. YOUR ROBOT IN THE APP Send us your robot from inside the app — an FBX exported out of your CAD, or a URDF — and we will build it into a drivable robot and send it back to you. Choose whether it is listed for everyone or unlocked only by a code you pass to your own team. It takes a few days and we tell you when it is done — or tell you what to re-export if the file cannot be made to drive. NO ACCOUNT, NO ADS, NO PURCHASES There is nothing to sign up for and nothing to buy. Your settings never leave your device. The app works offline. Not affiliated with, endorsed by, or sponsored by VEX Robotics, Innovation First International, or the REC Foundation. Robot designs remain the property of the teams that built them.