Do I need to beat a timer?
No. The clock records your best delivery; taking your time never fails a route.
SPUNKY ORIGINALS
A mountain mail run with a movable center of gravity

A storm has cut off eighteen mountain post stations. Your mail rover carries a sliding brass ballast: move it forward to lower the nose, or backward to lift it. Read the slopes, cross broken bridges and park at the glowing post lantern.
A mountain mail run with a movable center of gravity

Hold → / D to drive, ← / A to brake. Space shifts the ballast. Slow down at the lantern.
An original physics driving game by Spunky Game. Inspired by simple driving inputs, with a separate movable-weight decision.
Best delivery times and unlocked routes stay in this browser.
No. The clock records your best delivery; taking your time never fails a route.
Retry immediately. The current route restarts, while unlocked routes and best times remain.
Yes. Hold the two pedals and tap the ballast button. Music and effects have separate volume controls.
No. Ballast Run has its own vehicle, artwork, routes and movable-ballast mechanic.
Only in this browser’s local storage. Clearing site data removes unlocked routes, times and audio preferences.
Slow to below 20 km/h beside the lantern with the rover upright and wheels touching the road. If you overshoot, reverse back.