How to use
Run a clean first pass
- Watch the block slide left and right above your platform.
- Tap, click, or press Spacebar to drop it when it lines up.
- Survive all 6 work shifts and enter Chaos Mode — how high can you go?
Block Stack
Stack it high. Don't miss. Survive the night shift.
FLOOR
0
☀️ MORNING SHIFT
BEST
0
Site Inspection Report
Crane Operations Unit
DATE
TOWER HEIGHT
BEST HEIGHT
FINAL SHIFT
PERFECT COMBOS
CAUSE
Structural misalignment.
INSPECTOR'S NOTE
FAILED
Space / Click / Tap — drop the block
How to play Block Stack
A block slides left and right above your tower. Tap, click, or press Spacebar at the right moment to drop it. The overlapping portion becomes your new platform — the hanging part tumbles off. Miss completely and it's game over. Stack precisely to keep your platform wide.
Every 5 floors the crane switches cargo and the rules change. Lunch Break bento boxes slide faster and are narrower. Overtime coworkers follow an unpredictable sine-wave roll. Night Shift neon signs flicker randomly. Graveyard crates arrive in random sizes. Survive all 6 shifts and you enter Chaos Mode — anything goes.
Land within 3% of perfect alignment for a PERFECT! bonus — your platform stays the same width and your combo counter grows. Chain 5 perfects and your block glows gold. Your best floor is saved on this device.
Quick guide
Use cases, answers, and nearby tools
Compact below-tool notes that help first-run users and repeated visitors move faster without changing the main interface.
Examples
Real jobs this page helps with
- 6 shifts × 5 floorsMorning concrete slabs, Lunch bento boxes, Afternoon office gear, Overtime sleeping coworkers, Night neon signs, Graveyard mystery crates — each with its own movement mechanic.
- Perfect landing bonusDrop within 3% of perfect alignment to keep your platform width and grow the combo. Chain 5 perfects and your block glows gold.
- Chaos Mode at floor 31Past floor 30 every layer randomly picks one of the 6 shift mechanics. Endless survival — no ceiling.
FAQ
What people usually want to know
- How do I get a PERFECT?
- Drop within 3% of perfect alignment. Your platform stays full-width and the combo counter grows.
- What makes each shift different?
- Each shift changes how the block moves: linear, narrow+fast, gravity-settle, sine-wave, flicker, random-width. Not just visuals.
- What happens after floor 30?
- Chaos Mode — each floor randomly picks one of the 6 shift mechanics. Endless survival.
- Is my score saved?
- Your best floor is saved in your browser. No account needed.