LinesClash · Multiplayer strategy board gameMake lines. Score points.
Build lines. Block your rivals. Beat five AI opponents or play with friends. Most points wins.
Quick Classic duel · Hard AI · 6×6 · no sign-up
Play against our best AI
Nightmare
Think you’re smart? Take the challenge.
Creator’s dare: I beat it. Can you?
Our AI vs humans
Loading…- AI wins
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- Human wins
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Ranked, unranked, guest and local AI games. Finished games count once. Opponent rows show duels; totals also include multi-AI games.
Choose how to play
Your progress
Win games, earn medals and climb the ranks.
Human ranks and AI achievements stay distinct.
Casual ChallengerAI challenge
Mind BreakerAI challenge
Iron ConquerorAI challenge
Anomaly HunterAI challenge
First BloodMultiplayer victories
No sign-up needed. Optional profile saves verified online scores.
THREE IN A ROW. A BIGGER CHALLENGE.
Free online strategy, board tactics and a tougher AI challenge.
LinesClash takes the familiar idea of making three in a row onto bigger boards. The first line is just the beginning: keep building, block your rivals and finish with the most points.
Play free in your browser against AI, invite friends online, or share one device with 2–4 players. Choose boards from 6×6 to 20×20 depending on the mode. Quick 6×6 Duels support two players or Casual, Smart and Hard AI; Experimental and Nightmare start at 9×9.
Looking for a brain-teasing game? Practice connected lines and defensive blocks, compare the five computer opponents, or take on Nightmare Hell in Classic. The Daily Score Trial gives you a repeatable board to improve your score. Classic, Combo and Battle offer different ways to use the same tactical ideas.