Instructions
Sum Comet
A sum hangs in the sky and comets fall carrying numbers. Shoot the one with the answer. Pick adding, subtracting or times tables, how big the numbers are and how fast the comets fall.
- Year
- 1998
- Era
- Early Web
- Genre
- Educational / Maths shooter
Free, no sign-up. Keyboard, touch or gamepad.
How to play
- Menu: Up/Down pick a row, Left/Right change it, A starts.
- Play: Left/Right slide the cannon, A fires.
- P to pause.
On touch
- Tap a row to change it, then START.
- Tap a comet and the cannon slides over and fires.
Every run starts on the title screen. Pause any time with P or the pause button; calm mode removes flashes and screen shake.
Maker’s note
Teacher friendly: nothing is ever taken away, a wrong shot just fizzles with a kind message, and a comet that lands shows the answer. Larger numbers and a quicker pace are worth more points per answer, so every setting has a fair ladder. Score is right answers, a small streak bonus and an accuracy bonus. A round is two and a half minutes.
The Eracade workshop
Target scores
- 1100
- 2250
- 3450
- 4700
- 51,000
- 61,400
- 71,900
- 82,500
Each target is a step up. Beat them all and you have outplayed the workshop.
The Early Web era, 1997–2004
Beige towers, bevelled buttons and games that loaded one modem squeal at a time.
High scores
The top ten runs are saved in this browser with your three initials. Nothing is uploaded unless you submit a ranked run, so clearing site data clears the table.
