Romania’s National Office for Gambling (ONJN) has officially blacklisted Polymarket, a well-known decentralized prediction market platform, citing unauthorized gambling operations within the country. The Romanian regulator emphasized that the decision was based strictly on legal grounds, not on the underlying blockchain technology used by the platform.
Polymarket allows users to place bets using cryptocurrency on the outcomes of real-world events, ranging from political elections to sports results and economic indicators. While the platform operates on blockchain to ensure transparency and decentralization, the ONJN ruled that such betting activities fall under the legal definition of gambling and therefore require appropriate licensing to operate within Romania.
Vlad-Cristian Soare, president of the ONJN, clarified the agency’s stance in a formal statement: “This isn’t about the technology involved—whether it’s blockchain or fiat currency. If you place a bet on a future event and there’s a stake involved with a chance of gain or loss, that activity legally constitutes gambling. And gambling must be licensed, regardless of the medium.”
Soare further warned that the agency would not tolerate blockchain being used as a veil for illegal betting operations. “We will not permit the misrepresentation of blockchain as a loophole to sidestep national gambling regulations,” he stated.
Polymarket, which has grown in popularity for offering decentralized event forecasting, is now among a growing list of platforms restricted by Romanian authorities for operating without the necessary approvals. While the service is technically accessible through decentralized networks and blockchain technologies, Romanian ISPs may now be required to block access to the site, following the listing in ONJN’s public registry of unauthorized gambling platforms.
This move by ONJN aligns with a broader trend across Europe where regulators are increasingly scrutinizing crypto-based platforms that offer financial incentives without proper oversight. Although Polymarket markets itself as an information platform enabling users to speculate on future events, regulators argue that the presence of monetary stakes and winnings classifies it within the legal domain of gambling.
Legal experts note that the line between prediction markets and gambling is often blurry. While prediction markets have been praised for their ability to aggregate public sentiment and forecast events with remarkable accuracy, when real money is involved, especially in a peer-to-peer betting model, most jurisdictions consider it a form of gambling.
The Romanian regulator’s decision could have far-reaching implications for other blockchain-based platforms operating in similar grey areas. As decentralized finance (DeFi) and Web3 applications continue to expand, national regulators are under increasing pressure to adapt existing legal frameworks to address these emerging business models.
In response to the blacklisting, Polymarket has yet to release a formal statement. However, the platform may soon need to consider acquiring local licenses or geo-blocking users from restricted regions to avoid further legal consequences in other jurisdictions.
The ONJN’s action also underscores the importance of regulatory compliance for crypto projects, especially those that intersect with industries like gambling, finance, or trading. Without clear legal standing, such platforms risk being banned or forced to cease operations in countries with stringent laws.
International observers are watching Romania’s regulatory approach closely, as it could serve as a model for other nations grappling with the challenge of integrating decentralized technologies into existing legal systems. Countries like Germany, France, and Italy have already begun tightening rules around crypto gambling, and Romania’s proactive enforcement may encourage similar moves elsewhere.
For Romanian users of Polymarket, the blacklisting means they may face limited access to the platform. Financial institutions might also begin monitoring or blocking transactions associated with the service, especially if directed by national authorities.
In the broader context, the clash between decentralized innovation and centralized regulation is becoming increasingly evident. As platforms like Polymarket push boundaries by offering novel ways to engage with markets and information, governments are being forced to reconsider how traditional laws apply to this new digital frontier.
Ultimately, the outcome of this situation could influence not only the future of Polymarket in Romania but also the evolution of regulatory frameworks governing blockchain-based prediction markets worldwide.

