The Accident of Television
Region locking did not begin as a business strategy. It began because televisions did not agree with one another. The world had settled on incompatible broadcast standards — NTSC across North America and Japan, PAL across most of Europe and Australia, SECAM in France and elsewhere — and these were not merely different labels but genuinely different signals, with different refresh rates and different numbers of scan lines.
A game console generates a television picture, so it must generate the picture its local televisions expect. An NTSC machine outputs roughly 60 frames per second; a PAL machine outputs 50. This is why European versions of countless classic games run visibly slower and sound lower in pitch than their Japanese and American counterparts, and why PAL players spent a generation experiencing Sonic and Mario at five-sixths of the speed their designers intended, often with black bars top and bottom where the extra scan lines went unused.
In that world, a hard technical barrier existed regardless of anyone's intentions: software written for one video standard would not simply work on another. But the industry did not stop at that natural boundary. It built walls where none were needed.
Building the Walls Higher
Nintendo introduced the first console-level regional locks and maintained them across essentially every home console it made until the Switch. The 10NES authentication chip encoded not just whether a cartridge was legitimate but which region it belonged to, dividing the world into NTSC, PAL-A, PAL-B, and Asian territories. A cartridge would refuse to run on a console from the wrong region even where no technical obstacle existed.
Physical barriers reinforced the electronic ones. Japanese Famicom cartridges used a different pin count from North American NES cartridges, making them physically incompatible without an adapter — a difference that served no engineering purpose whatsoever. Later systems used differently shaped cartridge shells, notched slots, and disc authentication routines to achieve the same end. Where the hardware could not enforce separation, the software would.
The commercial logic was straightforward. Region locking let publishers price the same game differently in different territories without arbitrage, control the timing of releases so that a game could launch in Japan a year before Europe without cannibalising sales, protect the exclusive rights of regional distributors, and suppress the grey-market importing that undermined all of the above. It was not a technical measure dressed up as a business one; it was a business measure wearing technical clothes.
The Cost to Players
For players, the effects ranged from irritating to genuinely destructive. European gamers routinely waited a year or more for games that had already shipped elsewhere, and when the games finally arrived they were often slower and letterboxed, poorly converted from their 60Hz originals. Enthusiasts who imported Japanese games to play them sooner, or at proper speed, or because they would never be localised at all, found their consoles refusing to run them and turned to modchips, adapters, and cartridge-slot surgery.
Whole categories of games were simply lost to entire continents. Terranigma was translated into English and released across Europe but never sold in North America, because Enix had closed its American branch. Sakura Wars, Radiant Silvergun, Seiken Densetsu 3 and countless other titles never left Japan, and the only legitimate way to play them was to import hardware as well as software. The region lock did not merely delay these games; for most players it made them functionally nonexistent.
The justification — that different television standards required different products — grew thinner every year. By the time consoles output digital video to displays that could accept any signal, the technical premise had vanished entirely, and yet the locks remained, doing exactly what they had always really been for.
The Slow Retreat
The walls eventually came down, unevenly. Sony abandoned region locking with the PlayStation 3 in 2006; Microsoft followed with the Xbox One in 2013; Nintendo, the practice's originator and most committed adherent, finally relented with the Switch. The reasons were as commercial as the original locks had been: digital distribution made regional storefronts easier to control than physical discs, global simultaneous releases became the norm for major titles, and the internet made the absurdity of geographic restriction increasingly visible and increasingly resented.
What remains is a strange archaeological layer in the medium's history. A generation of players grew up with the unexamined assumption that a game bought abroad simply would not work — that the medium had national borders in a way that books and films did not. The residue is still with us in the collecting scene, where region-free consoles command premiums, in the emulation and preservation communities that had to work around the locks to save the software, and in the peculiar fact that some of the most acclaimed games ever made were, for most of the world, unplayable for decades.
Region locking is a case study in how a genuine constraint can be laundered into a permanent commercial instrument. The televisions changed. The locks did not.