Duotrace

About this game

Duotrace is a chill but sneaky-tricky puzzle game. The rule is simple: trace every line in the shape exactly twice without lifting your finger. Sounds easy, until the shapes get tangled and you have to think ahead to find the path that works. What sets it apart is that double-trace twist. A small rule that becomes a real brain teaser, with a great "aha, got it!" feeling once you crack a level.

How to play

1. 1Left Click/Tap: Select the next connected node and draw a line to it.
2. 2Pause Button: Pause or resume the game.
3. 3Reset Button: Restart the current level from scratch.
4. 4Hint Button: Get a free hint (limited uses), or watch a short ad for an extra hint.

Controls: Single player · Landscape

Tips and strategy

• Each line has to be traced exactly twice, so this is a counting problem as much as a drawing one. Keep track of how many passes each part of the shape has had, because that is where mistakes hide.
• Start on a corner or a dead end rather than the busiest node in the shape. An endpoint gives you nowhere to go once you reach it, so spend those while you still have a choice about the route.
• The trace is continuous, so arriving somewhere with no way onwards means the damage was done earlier. Reset the level rather than trying to unpick the last few moves.
• Hints are limited, so keep one for a shape where you already have most of a route worked out. A hint that confirms your plan is worth far more than one that starts the level for you.

Game details

Developer

Duotrace

Released

Aug 23, 2026

Updated

Aug 23, 2026

Players

Single player

Category

PuzzleSkill

Tags

Frequently asked questions

What does double trace mean in Duotrace?

You have to cover every line in the shape twice without lifting your finger in between. The count is what makes it hard, because a route covering everything once is rarely the one you need.

Can I play Duotrace on a touch screen?

Yes. Tapping the next connected node draws the line to it, so a finger on a phone or tablet works exactly as a mouse does on a desktop.

How do I recover from a broken trace in Duotrace?

Use the reset button and start the shape again. It costs you nothing, so restarting a broken route beats trying to rescue it, and it keeps your limited hints for a nearly finished plan.