What is LinesClash?
LinesClash is a free browser strategy game inspired by three-in-a-row games. Place fantasy symbols on a shared board, build scoring lines and finish with the highest score.
PLAYER GUIDE
How to play LinesClash
Place one symbol per turn, build lines of three and keep scoring until the board is full. The highest score wins.
Start a game in four steps
- Choose your opponents. Use Same device for pass-and-play, Vs computer for an AI opponent, or Online for friends and quick matches.
- Choose a mode. Duel is for two players, Triple for three and Chaos for four. Marathon and Insanity offer bigger boards for 2–4 players.
- Place a symbol in any empty cell. Build horizontal, vertical or diagonal lines. Faint area borders do not restrict where you can play or where lines can score.
- Keep playing to the finish. Making the first line does not end the match. Longer lines add scoring opportunities. When the board fills, compare the final scores.
For exact points, area bonuses and defence scoring, read the full game rules.
Pick the right first match
Start with a 9×9 Duel against Casual AI to learn without a turn timer. Try Smart or Hard when you want more pressure. Experimental and Nightmare have a 30-second human turn clock; Nightmare also offers Hell Mode.
For friends, create a private room and share the invite link. Everyone joins the same board. Confirm Ready before the host starts the match.
Board sizes and player counts
| Mode | Players | Default board |
|---|---|---|
| Duel | 2 | 9×9 |
| Triple | 3 | 9×9 |
| Chaos | 4 | 12×12 |
| Marathon | 2–4 | 15×15 |
| Insanity | 2–4 | 20×20 |
Some modes let you choose another board size before starting. The whole board remains open throughout the match.
Frequently asked questions
Is LinesClash the same as tic-tac-toe or Ultimate Tic-Tac-Toe?
No. Classic tic-tac-toe ends when a player makes a winning line on a 3×3 board. LinesClash uses larger boards, keeps scoring after the first line, and ends when the board is full. Unlike Ultimate Tic-Tac-Toe, a move does not send your opponent to a restricted smaller board.
Can I play LinesClash online with friends?
Yes. Choose Invite friends on the home page, create a private room and share its invite link. You can also use Quick match to find opponents, or play together on the same device.
Can I play against the computer?
Yes. Choose Casual, Smart, Hard, Experimental or Nightmare. Casual, Smart and Hard have no human turn timer. Experimental and Nightmare, including Hell Mode, use a 30-second human turn limit.
Do I need an account or a download?
No download is required. Guest play is available in the browser. Sign in to keep your official account progression and view other players’ profiles and detailed match histories.
How many players and board sizes are supported?
Human games support 2–4 players. Duel and Triple start on 9×9 boards, Chaos on 12×12, Marathon on 15×15 and Insanity on 20×20. Available board choices depend on the mode.
How do I win?
Play until every cell is filled. The highest total score wins; equal highest scores tie. A line of three scores points, longer lines keep adding scoring segments, and some moves earn area or defence bonuses.