Whistlepost

A city runs on pneumatic tubes, and you are the one who draws them. Drag from a station and a tube follows your finger. Let go, and the capsule is on its way while you are already drawing the next one. Two capsules too close means a jam, a whistle and one of your three marks. - 120 shifts across six districts - Six kinds of cargo: letters, parcels, glass that cannot pass heat, ice that must arrive in eight seconds, heavy loads with a length limit and express mail - Six obstacles: timed shutters, pressure valves, heat zones, one-way links, junctions and wind shafts - A third star for short, tidy routes, not for fast fingers - 20 permanent upgrades in the office and an album of 20 postmarks - A daily shift, the same one for everyone, open from your first launch - An endless night mail run No account. No internet. No ads. No analytics. No in-app purchases. No permissions of any kind. Everything is earned by playing, and your progress stays on your device.