Sky Stack is a one-button construction game set on a bright cyan skyline. You run a yellow tower crane that carries pastel apartment floors, one slice at a time. Tap, click, or press Space when the hanging floor lines up with the tower already rising from the clouds. A tight drop is Perfect: combo climbs and the most residents move in. A wider drop still stacks, but the floor shifts and combo resets. Miss the tower three times and the site closes for the day.

One button, one floor

There is no analog stick and no pile of menus. The crane itself is the metronome. Its jib swings on a sine curve that grows a little wilder as the tower gets taller and as gusts roll across later districts. You watch the cable, wait for the apartment windows to sit over the slab below, and drop. The whole loop is readable in the first ten seconds and still tense on floor thirty.

Perfect, nice, miss

Every drop is judged against the center of the top floor. Land inside the tight window and the slice sits flush, combo increases, and the population bonus scales with that streak. Land in the wider window and the floor still becomes part of the skyline, but the tower center creeps toward the miss and residents arrive in smaller numbers. Miss completely and a floor tumbles away in a puff of dust — you keep the tower you already built, but you lose one of three lives.

Five districts, twenty-five sites

Harbor Dawn teaches a gentle swing and eight to twelve floors. Midtown Breeze tightens the perfect window. Storm Ridge adds wind spikes every few stories so the amplitude jumps without warning. Cloud Crown asks for taller stacks on narrower slices. Skyline Finale is the late game: thirty-plus floors, combo pressure if you want three stars, and a crane that never sits still. Each district is a rooftop map of pins. Locked pins wait behind the previous clear. Stars stay on the pin so you can see which sites still need a cleaner run.

Stars and the population board

Clear the target floor count to stamp one star. Keep two lives for a second star. Finish with three lives and a high combo peak for the third. Your best single-run population is the score sent to the shared Sky Stack leaderboard. The board has an all-time tab and a current-season tab, both read from the same online list. Set a display name on the hardhat in Settings before you chase rivals; changing the name starts a fresh player on the board.

A yard you can walk

Home is the construction roof, not a settings list. The drop lever starts the district tour. The weathered map easel opens the same tour from the other side. A hanging trophy board is the leaderboard. A red toolbox is Settings: sound, music, eight languages, and your display name. A clipboard explains the three rules. A mailbox sends a note to the studio. Help, contact, and settings sit as overlays on the same sky so you never leave the site.

Built for phones and desks

Sky Stack fills the screen in portrait or landscape. The tower and HUD reflow when the window is wide. There is no rotate-to-play gate and no letterbox. Play in English, Vietnamese, Traditional Chinese, Simplified Chinese, Japanese, Spanish, Hindi, or French. Progress lives on the device. The leaderboard and contact form use the studio API when you are online; stacking floors never requires a network.

No pay to win

Cosmetic floors and crane skins may arrive later. Timing, lives, and stars are never sold. The game is a short, honest test of nerve on a sunny construction site in the sky.

Features

One-button crane stacking
Perfect / nice / miss timing
Five city districts
Twenty-five map pins
Population leaderboard
Eight languages

What's new

1.0.0 — Sky Stack opens the yard. A yellow crane carries pastel apartment floors across a cyan sky. Tap or press Space to drop; a tight line is Perfect and fills the building with residents, a wider line still stacks, and three misses close the site. Five districts from Harbor Dawn to Skyline Finale unlock pin by pin. Stars remember your cleanest run. The home roof is a real yard — drop lever, map easel, toolbox, clipboard, mailbox, trophy board — not a list of app buttons. Eight languages, a shared population leaderboard with all-time and season tabs, and a contact note that leaves the site office. Draft listing; marketing PNG export follows review.