The Invaders Are Descending, and the Arcade Smells of Rain

There is a particular sound to 1978: the thump-thump heartbeat of Space Invaders speeding up as the sky empties. Tomohiro Nishikado wanted to make a shooting game, and after considering tanks and airplanes, he looked to the stars — or rather, to the strange little creatures descending from them, row upon glowing row.

The game's genius lives in its tension. The invaders quicken as you thin their ranks, not because anyone programmed drama, but because the hardware could finally draw the screen faster with fewer sprites. A limitation became a heartbeat. Players in Japan reportedly caused a shortage of hundred-yen coins; arcades dedicated entire floors to nothing but the descending armada.

Huddle close to the cabinet and you can still feel it — the small bunker of light the game builds around you while the rain of pixels falls. Every horde mode, every tower defense, every last-stand finale owes a debt to those five rows of aliens and the four crumbling shields between them and the Earth.