It's 1990, Friday afternoon, and something that looked like absolute nonsense was spinning on my 286 — colorful tiles falling from a conveyor belt, you catch them and stack them into rows. Five minutes later I was away from the computer until evening.

Klax is an arcade puzzle game from Atari, originally from arcade cabinets in 1989, ported a year later to PC and a number of other platforms. The principle is brutally simple: colored tiles come down a conveyor belt, you catch them in a hopper and then throw them into the grid below. The goal is to arrange rows — horizontally, vertically, or diagonally — of three or more matching colors. A row forms, it disappears, you get points. The hopper fills up or tiles spill over the edge, and you're done.
The controls are three buttons, anyone can handle it in thirty seconds. But depth comes gradually: higher difficulty adds speed and more colors, the hopper fills faster than you can react, and suddenly you need to think two moves ahead. The game subtly forces you to plan. It's not just about where to place a tile, but when to hold it and when to throw it. Diagonal combos are then purely satisfying in the same way as when a long piece in Tetris falls perfectly into the gap.

What Klax brought was a combination of reflexes and thinking at a time when most arcade games wanted one or the other. Graphically it was never anything special — four colors, flat squares, no animation worth mentioning. The sounds on the PC speaker were what they were. But this didn't bother the game then and doesn't bother it now. The simplicity here is intentional and functional. What's really aged poorly is the absence of any save system or progression — every start is from zero and motivation to keep playing depends purely on you and your score.

Today Klax suits anyone who's in the mood for a fifteen-minute puzzle session without tutorials, cutscenes, and battle passes. If you haven't played it in the nineties, you won't have any nostalgic debt — the game stands on its own regardless of age. You can run it in a browser instantly, no installation, no DOSBox. Perfect for a break, dangerous for a work break.