4inROW

Drop your discs, block your opponent, and line up four before they do — 4inROW turns a classic board game into a quick mouse duel.

You know the setup: a vertical grid, a stack of colored discs, and two players taking turns dropping pieces into columns. 4inROW keeps that timeless formula but strips it down to a hypercasual web game. No menus, no tutorials that overstay their welcome — just click a column and your disc falls into place. I fired it up expecting a quick round and ended up going best of seven with a friend. What makes it work is how clean the feedback feels. The disc slides down with a satisfying thud, the grid highlights your last move, and when someone finally gets three in a row you start sweating every open column. The AI (if you're playing solo) is decent but beatable, which is exactly what you want for a lunch-break game. You'll learn to spot diagonal threats — that's where most wins come from, not straight lines. Don't just defend vertically; horizontal and diagonal traps are what separate casual players from serial winners. The mouse-only controls are dead simple: hover to aim, click to drop. On mobile it's tap-to-place. There's no flashy animation or lag, just pure pattern recognition. If you've ever played Connect Four at a family gathering, you'll feel right at home. My one gripe? It could use more board sizes or a move counter, but for a free unblocked version, it's hard to complain.

With mouse left or right and drop with click on left button

Always check diagonals before you drop; they're the easiest four-in-a-row to miss. Block your opponent's three-disc line even if it means sacrificing your own setup. Click the column edge rather than dead center to avoid accidental drops when hovering. In two-player mode, watch for the classic double-threat: two separate three-lines you can complete on consecutive turns. Play the middle columns early — they give you more directions to build. Rush the bottom rows first; they anchor every possible winning line.

Q: Is 4inROW free to play? A: Yes, it's completely free in your browser with no paywalls or locked features. Q: Can I play 4inROW on mobile? A: Yes, the game supports touch controls, so you can tap columns on your phone or tablet. Q: Do I need to download anything? A: No downloads needed. It runs directly in your web browser as an HTML5 game. Q: Is there a two-player mode? A: Yes, you can play against a friend locally on the same device or against the computer AI. Q: What's the goal of 4inROW? A: Get four of your discs in a row horizontally, vertically, or diagonally before your opponent does. Q: Can I adjust difficulty? A: The standard version doesn't have difficulty settings, but the AI provides a fair challenge for casual play.