Sum Cross
Cross sums. One answer, no guessing.
How to play
Fill the white squares with 1 to 9 so every run adds up to the clue at its start, with no digit repeated in a run. Tap or drag to pick a square and tap a number (or type it; arrows move, Space for pencil notes). A daily puzzle that grows through the week, then a practice ladder.
Sum Cross is a free 2D browser game by Oneshot Gems.
- Play now
- Free in your browser · No download
- Style
- 2D · Chill
- Controls
- Tap and Drag
- Languages
- English, Español, Français, Deutsch, Português (Brasil), 日本語, 한국어, 简体中文, العربية, हिन्दी
- Added
Tap the game to play it in the app, then swipe up for the next game.
About Sum Cross: quick answers
What is Sum Cross?
Sum Cross is a free 2D browser game by Oneshot Gems.
How do you play Sum Cross?
Fill the white squares with 1 to 9 so every run adds up to the clue at its start, with no digit repeated in a run. Tap or drag to pick a square and tap a number (or type it; arrows move, Space for pencil notes). A daily puzzle that grows through the week, then a practice ladder.
Is Sum Cross free to play?
Yes. Sum Cross is free to play in your browser. The feed includes ads between games. See pricing for available subscriptions and creation credits.
Does Sum Cross work on mobile?
Sum Cross runs in a modern browser on a phone, tablet or computer, with no download or install. Device performance and browser support can vary.
What controls does Sum Cross use?
The game’s instructions describe these actions: Tap and Drag. Check the instructions in the game for where to use them.



