How to play
Balance the row totals and the column totals. The board tells you the target sums on each side.
Game features
- Sixty hand-built boards
- Built-in hint system, one cell per board
- Daily puzzle plus freeplay
- Save resumes per-board state
- Single-tap input on touch devices
- No real-money purchases
Editor review
Loop Trace pairs a number-balance rule with small boards. The board tells you the target row and column sums; you place numbers from a fixed pool to hit both sets at once. The rule is one of the cleaner number-puzzle rules I have seen this year, and the small board size keeps the boards solvable in three to five minutes each.
The hint system shows you one valid placement on demand. That trade is well-tuned; the hint never gives a full row away and a player who uses the hint button still has to do the rest of the work.
I played through about thirty boards across several short Brisbane Brisbane ferry rides. The session length suits the format. The save preserves your placements per board.
Where the design lands short is the late-game tier. The hardest boards depend on backtracking from a contradiction, and the contradiction is not always visible until you have placed six or seven numbers. A clearer error-state would help. Three stars overall.
Mei Lin Chen covers Puzzle and logic games for Loop Arcade, based in Taipei.
Frequently asked questions about Loop Trace
How do I play Loop Trace?
Balance the row totals and the column totals. The board tells you the target sums on each side.
Is Loop Trace free to play in my browser?
Yes. Loop Trace runs free in any modern browser. No installation, no signup, no payment required. Click the play button to load the game.
Does Loop Trace work on mobile devices?
Loop Trace runs in mobile browsers on iOS and Android with touch controls. Most puzzle games on AJ Arcade support both desktop and mobile, though precision-heavy titles tend to play better on desktop with a keyboard or gamepad.
Who reviewed Loop Trace on AJ Arcade?
Mei Lin Chen reviewed Loop Trace. Their full editor review appears above and their other coverage is available on their author profile.
Where can I find more games like Loop Trace?
More puzzle titles are available on the Puzzle category page. Every game on AJ Arcade has been played and reviewed by one of our three reviewers before publication.