Action covers a wide stylistic range - shooters, runners, beat-em-ups, brawlers, anything where reflexes and timing matter more than reasoning. The category exists at the opposite end of puzzles: where puzzles reward thinking before you act, action games reward acting fast and recovering when you're wrong.
The challenge of action games on the web is that the medium has constraints. No gamepad assumed. Often no audio. Keyboard input is less precise than a controller, mouse aiming is less precise than a console twin-stick. The action games that work in this format design around those constraints - they keep movesets small enough for keyboard, they communicate clearly through visuals when audio is missing, and they pace the difficulty so a missed input isn't immediately fatal.
The picks we feature here tend to lean toward the high-readability end of the action genre. You can tell at a glance what's happening, you can tell what killed you when you die, and the input lag is low enough that fast play actually rewards you. Auto-shooters, endless runners, single-stick brawlers - formats that work with the browser instead of fighting it. Action purists may find some of these too forgiving; for the medium, they're paced exactly right.
