Build an arcade cabinet

Change somebody else’s game: a balance patch, a total conversion, a Skyrim follower who talks back. Half-Life became Counter-Strike this way.

One map, start to finish - blockout, lighting, playtesting - in a level editor or a game that ships one, from Doom to Mario Maker.

A 3D model, a sprite sheet, an animation or a sound effect, made to the size and format a real engine wants and dropped into one.

Score a game, or write one chiptune track under the constraints of a real sound chip - three channels and a noise generator.

Four ghosts, a maze and 256 levels before the kill screen; the 1980 arcade icon.

Rows of aliens that speed up as you kill them; the game that caused a coin shortage in Japan.

Jumpman climbs girders to save Pauline; Mario's first appearance, 1981.

Dual fighters and the captured ship; the shoot-em-up perfected.