Free HTML5 browser game

Flow Lines

A 50-level color-connection puzzle that requires paired lines to cover the entire board.

Join matching colors without leaving empty spaces, then solve increasingly difficult grids.

Flow Lines places matching color endpoints on a grid. Drawing a line between each same-colored pair creates the flows needed to solve the puzzle.

Flow Lines

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The game and in-game advertising are delivered by GameMonetize. If the player does not start, refresh this page or try a current Chrome, Safari, Firefox or Edge browser.

Current source controls: You can play this game only with a finger on mobile and it s playable only by mouse on pc

Quick facts

Game details

Channel
Board & Card Games
Subcategory
Board Games
Provider
GameMonetize
Platform
Web Browser
Orientation
portrait
Updated
July 21, 2026
Desktop controls
See reviewed instructions below
Touch controls
See reviewed instructions below

Optional third-party video

Game walkthrough

The walkthrough player is supplied by GameMonetize and may contain advertising. It loads only after you choose to open it.

About Flow Lines

Every color must be paired, and the finished set of lines must cover the entire board. The game contains 50 levels, beginning with easier arrangements before advancing to more difficult connection layouts.

Objective: Connect every matching color pair and cover the whole board with lines.

Core loop

  • Draw a line between equal colors, preserve space for the remaining pairs, and fill the grid.

How to play Flow Lines

  1. Use the mouse on a matching color to start a line.
  2. Draw the line to the endpoint with the same color.
  3. Pair all colors and cover every board space to solve the puzzle.

Controls

Desktop

Use the mouse to draw connections.

Gameplay mechanics

  • Matching color endpoints
  • Line drawing
  • Full-board coverage
  • Fifty puzzle levels

Progression and modes

Advance through 50 levels that move from easier grids to harder color-connection puzzles.

What to expect

  • A portrait grid of colored endpoints that must be joined while every space is covered.

Flow Lines is provided by GameMonetize and is playable here through its browser-game embed.

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