Vampire Night

What is Vampire Night?

Japan’s path to IR legalisation was not straight forward. The IR Promotion Act, which set Japan on the road to casino-integrated resorts, was passed in December 2016 after a contentious debate. Nearly two years later came the IR Implementation Act, which laid out the regulatory frameworks for casinos, from entry restrictions to measures addressing gambling addiction and other social concerns. Yet even as the government pitched IRs as a catalyst for tourism, regional development and economic growth, opposition remained aggressive.

Among the opposing forces was Kenji Eda, a prominent House of Representatives lawmaker from Yokohama and a senior figure in the opposition Constitutional Democratic Party of Japan. Eda has been a vocal critic of the government’s IR push, raising concerns over gambling addiction, the economic impact on local businesses and whether the casino-led model would deliver the promised benefits.

The prospect of international operators snapping up Japan’s coveted IR licences gradually lost its lustre, as the likes of Wynn Resorts, Las Vegas Sands, Genting Singapore and Caesars Entertainment balked at the demanding regulatory framework, hefty investment requirements and uncertain returns.

What is Vampire Night?

While simulations and validation exercises had helped Kambi prepare for the traffic and operational demands of the 2026 World Cup, testing could not establish how performance would compare with the wider market once the football began.

Independent analysis by Bettormetrics found Kambi partners either led or shared the lead on measures including time to market, live uptime and bet delay. It also outperformed its B2C and B2B competitors on live uptime in World Cup markets including over/unders on total goals.

“All the testing in the world cannot tell you precisely where you stand against the rest of the market on key aspects of the product,” Lamb says. “It was very positive to see Kambi as a leader in these key metrics.”

About Vampire Night

Around 49% of the adults surveyed said they had gambled within the past four weeks, a figure consistent with previous years. 

When excluding those who only played lottery draws, participation stood at 28%, implying lottery-only players comprised roughly 21% of the adult population. 

Online gambling participation over four weeks reached 39% (16% excluding lottery-only players), while in-person gambling participation was 29% (18% excluding lottery-only players).