Facing a government censor, game makers built their own ratings board in months

In December 1993, Senators Joe Lieberman and Herb Kohl convened a joint hearing on video game violence, playing Mortal Kombat's spine-ripping fatalities alongside Night Trap and Lethal Enforcers. Lieberman floated creating a government-operated regulatory body for games, which then carried no age ratings at all — no equivalent of the movie industry's labels.

Ahead of the hammer, the industry's trade group, the IDSA (today's ESA), agreed to build a rating system itself. The ESRB debuted in September 1994 with Early Childhood, Everyone, Teen, Mature and Adults Only labels; Mortal Kombat earned an M. Rival platform holders Sega and Nintendo, each running its own incompatible in-house ratings, folded into the single industry standard.

The design's quiet strength was that it was voluntary yet enforceable. Selling an M-rated game to a minor was never illegal, but major retail chains enforced the labels at the register anyway — so the rating acquired real gatekeeping power without a single statute, and the threatened federal body never materialized.

The enforcement held up over time. In the FTC's 2012 mystery-shop survey, only 13 percent of underage teens sent to buy M-rated games succeeded — unchanged from 2010 and the highest compliance rate of any rated entertainment industry, ahead of R-rated movie tickets (24 percent) and explicit-content music CDs (47 percent).

Build the regulator yourself before they build it for you

The threat was credible and imminent, so bitter rivals (Sega, Nintendo) unified behind one board in months instead of fighting over whose label won.

Retail checkout enforcement gave the voluntary label teeth without any law being passed.

Self-rating was faster and cheaper than any federal process, and Congress accepted it as a substitute.

The label also solved a real market problem — parents wanted a signal — and the M rating let developers sell adult games openly.

When regulation looks inevitable, the cheapest version is the one you design yourself — but self-regulation only counts if someone with teeth enforces it. Here, retailers did.

The ESRB still rates essentially every game sold in North America. It added the E10+ category in 2005 and dropped Early Childhood in 2018; the IDSA renamed itself the ESA in 2003. FTC mystery shops have repeatedly found game retailers the strictest rating enforcers in entertainment, and the federal game-rating agency proposed in 1993 was never created.