Sonar Type

v4.9 · typing defence
Sonar Type mid-run: words closing on a sonar scope, one of them locked and half typed.

Words drift in towards your hull from the edge of a sonar scope. Type one to lock on; finish it to destroy it. The sweep shows what's out there, and some contacts only show up when it passes.

Every run banks salvage to spend in the Dry Dock on hulls, weapon variants and cosmetics. The Logbook keeps your speed and accuracy over time, and which letters slow you down.

One of the niche apps I design and play-test; AI writes the code.

Play in the browser →build ea2fc76 · 2026-10-25

Needs a physical keyboard, so it won't play on a phone. Sound starts with your first key press.

How it plays

four modes
Sector
Three waves, then a leviathan built of stacked words. Clear it for a medal.
Patrol
Endless. The threat keeps climbing until the hull gives out.
Expedition
A chart of four legs (calm water, storms, wrecks), ending in a lair.
Drill
Ninety seconds of practice, words weighted towards your weakest letters. No damage.

Deeper sectors bring armoured words you type twice, reversed ones you type backwards, exact-case words, silent contacts, mines, decoys and words that split in two. The pause screen draws every kind.

Controls

keyboard only
In a run
a–z
type a word to lock on and fire
Backspace
drop the lock
/
ping: reveal everything for a moment
Space
pulse: slow every contact
Tab
torpedo: hits your locked word, or the nearest
hold Enter
nuke, once you've earned one
Esc
pause
On the title screen
1–0
difficulty
Tab
change mode
Enter
start
D
Dry Dock
L
Logbook
T · M · U
theme · sound · music
F11
full screen

Your save

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