📱 PLAY THIS ON YOUR PHONE. It's built portrait for thumbs — three lanes, three thirds of the screen. Open this page on mobile and hit play. It runs fine in a desktop browser too, but the phone is the way it's meant to be held.

overdue is a rhythm game built around a single song.

Notes fall down three lanes toward the hit line. Tap the lane as each one lands, hold the long ones to the tail, and keep the combo alive for ninety seconds.

The chart is hand-authored note by note rather than generated, so the patterns follow what the track is actually doing.

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How to play

Notes fall down three lanes. Tap the matching lane the moment a note reaches the hit line. On a phone that's just the left, middle, and right third of the screen — hold it in two hands and use your thumbs.

Lane	Phone	Keyboard
Left	Left third of the screen	A or ←
Middle	Middle third	S or ↓
Right	Right third	D or →

Long notes are held: press when the head lands, release when the tail reaches the line. Keep your thumb down — the release is what's graded.

Mistimed taps with nothing in range show a — and cost you nothing. They don't break combo and they don't touch your score, so poking at a quiet section is free.

Sound on. It's a rhythm game.

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Scoring

Every note is graded on how close you land to the beat.

Grade	Window	Points
GREAT	within 60 ms	350
GOOD	within 120 ms	250
OK	within 200 ms	75
MISS	anything later, or unhit	0 — combo resets

Holds are graded on the release, not the press. Get the head down inside the OK window to start the hold at all, then it's about how much of the hold you actually held: all the way to the tail is a GREAT, 70% is a GOOD, 50% is an OK, and letting go earlier than that is a MISS. It's measured as a fraction, so a short hold and a long one ask for the same commitment.

Combo multiplies your score. It climbs at 10, 25, and 50 notes — ×2, ×3, ×4. One miss puts you back to ×1.

Ranks are score-weighted accuracy: S at 95%, A at 88%, B at 78%, C at 65%, D below that.

Two badges sit above the rank, and neither shows up on a casual clear:

• FULL COMBO — finish with zero misses.
• PERFECT — every note, holds included, landed in the GREAT window.