Nintendo put a key-chip in every NES and sold the keys only with licenses

The 1983 North American video game crash was caused less by one bad product than by a flood: anyone could publish an Atari 2600 cartridge, retailers drowned in unsellable inventory, and consumer trust collapsed. When Nintendo brought the Famicom to the US as the NES in 1985, retailers only stocked it on strict terms, and Nintendo needed a way to promise quality control that a label could not enforce.

Its answer was the 10NES, patented as a system for 'determining authenticity of an external memory'. Every NES console carried a lock chip; every cartridge carried a key chip. On power-up the two chips ran an authentication exchange, and if the key was missing or wrong, the console reset in a loop — the game simply could not run. Nintendo manufactured every licensed cartridge itself, so the only way to get a working key was to accept Nintendo's licensing terms, including production runs and per-unit royalties.

The mechanism did double duty. Legally it was quality assurance for retailers; commercially it converted Nintendo from a console maker into the toll collector of a closed platform, decades before app stores made the pattern famous. Atari's subsidiary Tengen eventually reverse-engineered the chip to publish unlicensed games, and in Atari Games v. Nintendo (1992) the Federal Circuit held that reverse engineering itself was fair use — but by then the licensing model had already won the market.

A lock chip in the console; keys shipped only with a license

A promise ('Seal of Quality') is marketing; a chip that bricks unlicensed software is enforcement.

Controlling cartridge manufacturing meant Nintendo controlled supply, timing and its own per-unit royalty.

Retailers burned in 1983 would only stock a platform that could prove scarcity and curation.

The patent made copying the key itself an infringement claim, not just a contract dispute.

When a market dies from oversupply and bad quality, the fix can be a gatekeeper built into the hardware itself — control the bottleneck, and the business model follows.

Tengen's unlicensed cartridges and the ensuing litigation tested the scheme, but NES licensing became the template: Sony, Microsoft and every later console maker shipped their own lockout-and-license stacks. The antitrust and patent-misuse counterclaims from that era now read as the first draft of today's app-store debates.