Stack blocks. Manage the tilt. Tip past 45° and it's over.
♾
Classic
Endless — score as high as you can
⚡
Sprint
Race to 40 lines as fast as possible
🏃
Quick Play
Short, fast — 20 lines to win
⚖
Survival
Endure the tilt — survive as long as possible
🎯
Challenge
Hand-crafted physics puzzles — earn stars
🌀
Chaos
A new piece every 7s — you only control the lowest
📈
Ascent
Staged climb — speed, tilt & density ramp every level. Reach stage 25 to win.
Endless — score as high as you can
Display settings
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Classic
Capsized!
Display settings
Game Paused
50%
Controls
←→ / AD
Move
↑ / W
Rotate
↓ / S
Soft Drop
Space
Hard Drop
C
Hold Block
Z
Zone (freeze tilt)
H
Hint Pro
P / Esc
Pause
Physics Configuration
Standard (0%)
Less ← More aggressive tilt →
Standard (0%)
Slower ← Faster score multiplier →
Press P or ESC to resume
PROGRESSION
Newcomer
ZONECharge by clearing lines
0%
PRESS Z
ZONE ACTIVE
0 lines
COOLDOWN
Level 1
Lines: 0 / 10
Speed:0%
Physics:0%
Density:0%
Speed Phase
Hold
Balance Monitor
Angle:0.0°
Velocity:0.0
Stability:100%
Effects:None
Balanced - Good job!
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PROFILE
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MY SCORES Classic · Top 20
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LAYOUT
Show sections:
SETTINGS
50%
DENSITY GUIDE
Each block is outlined in its density color. Heavier blocks tilt the board more.
🎯 Challenge Mode
0 / 12 completed
Challenge
Objective
0%
Press V or Esc to exit
Keel: Sprint
A race against the clock — hit the line target as fast as you can without ever letting the ship tip.
How to play
A timed take on the cargo-balance game: every dropping container both fills the hold and shifts the ship's weight. Clear the required number of lines as quickly as possible, but a careless heavy side will heel the deck over and end your run before the finish.
Race to clear the set line target
Slot and rotate falling cargo to complete rows
Keep both sides balanced to avoid a fatal list
Beat the target without tipping to win
Controls
Desktop: Left/Right arrows move, Up rotates, Down soft-drops, Space hard-drops
Phone & tablet: swipe to move, tap to rotate, swipe down to drop
Tips & strategy
Hard-drop confidently — hesitation is the real enemy in a sprint
Keep loads roughly symmetric so you never stop to recover balance
Set up easy multi-row clears to burn the target down quickly
About Keel: Sprint
Keel: Sprint is an original arcade puzzle combining falling-block line-clearing with a balance mechanic and a race format — a free, fast browser game in the Keel series.
