Science
games.

A realistic 3D excavator simulator. Climb into a 20-tonne crawler excavator, start the diesel and lower the safety lock, then work two joysticks like a real cab: the left one swings the cab and runs the arm, the right one lifts the boom and curls the bucket (or switch to the SAE pattern). Two track levers drive and pivot the machine. The hydraulics ease in, share their flow, slow down with a heavy load and stall in a deep bite; a full bucket far out rocks the machine. Seven jobs from the pre-shift check to a trench dug to the string line, a dump truck loaded without spilling, a foundation pit with sloped banks, backfilling and levelling, pipes and boulders carried over a fence and a timed rush, plus free play. Cab or outside views, a working monitor with a depth guide, realistic engine, pump and track sounds, stars and a career score for the leaderboard.

Fly a fictional twin-jet airliner from a detailed 3D cockpit. The PFD, navigation, engine and checklist screens update live, and the sidestick, thrust levers, flaps, speed brake, gear lever, autobrake and overhead switches all work. Fourteen missions take you from a cold and dark start, taxi and first takeoff to a night ILS, a gusty crosswind, a rejected takeoff, an engine failure, a short island strip, rain and a full circuit, scored on touchdown rate, the touchdown zone, the centreline and a stable approach.

Build a modular cartoon rocket in the hangar from nose payloads, fuel tanks, engines, fins, side boosters and decouplers, watching its mass, thrust-to-weight and delta-v per stage. Launch it from your made-up home country at cities of other fictional countries on the planet Terra Pipo, where it bursts into candy, confetti, paint, fireworks or a water balloon, or fly a space program: orbit, satellites, a moon landing on Lunetta and a trip to the red planet Rubra. Earn coins to unlock parts and three stars per mission.

Fit a toy client's desk so knee, elbow and gaze angles all hit their targets at once: drag the chair, desk and screen, add a footrest or a tray, then test.

A jammed clock movement on a little tray. Lift out the bad wheels, fit gears that just mesh, mind which way each one turns, set the hand to 12 and hear it tick again.

Dog or rock? Tree or toy? Lean left for living, right for not. Sort them all.

Be a seed and grow into a flower. Crouch, stand, reach, bloom, repeat.

Run to build the pressure, then jump and erupt. Watch your volcano grow.

Be a water droplet and ride the whole cycle. Evaporate, cloud, rain, repeat.