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
Sign in to sync
Save your scores across devices. No email needed.
What name should we record your scores under?
1–12 characters. Stays on this device. Skip to play as Guest.
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!
MENU
DAILY CHALLENGES0 / 3
PROFILE
NameGuest
Games played0
CloudNot signed in
MY SCORES Classic · Top 20
No games played yet
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: Open Water
Cargo keeps falling into the hold — pack it smart, because the ship tilts with every load and a list past the limit ends the run.
How to play
This is a falling-block stacking game with a twist: weight matters. Slot each dropping container into the hold to clear lines, but every block shifts the ship's balance. Let one side grow heavier than the other and the deck heels over until it tips past the point of no return.
Move and rotate falling cargo to fill rows
Complete rows to clear them from the hold
Spread weight evenly to keep the ship level
Heel past the tipping angle and it's game over
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
Mirror your stacks — load the light side to answer every heavy drop
Clear lines fast to lower the whole load and reduce list
Don't chase a perfect fit if it tips the deck; balance beats tidiness
About Keel: Open Water
Keel: Open Water is an original arcade puzzle that fuses falling-block line-clearing with a real balance mechanic — a free browser game and the calm starting point of the Keel series.
