Casablanca – The FBI is investigating a suspected hacker accused of distributing malware through several video games hosted on the PC gaming platform Steam, the agency said Friday as it appealed for potential victims to come forward.
According to the FBI’s Seattle field office, the suspected threat actor published a number of games on Steam that secretly contained malicious software. Investigators believe the activity targeted users between May 2024 and January 2026.
The titles identified in the investigation include BlockBlasters, Chemia, Dashverse, DashFPS, Lampy, Lunara, PirateFi and Tokenova.
Authorities said the games appeared functional but were designed to act as a delivery mechanism for malware once installed on a player’s computer.
The bureau has not released details about the suspect or the full scope of the infections, but is asking anyone who downloaded the games or has relevant information to contact investigators.
In a public notice, the FBI said identifying victims is a legal requirement in federal criminal investigations and could allow affected users to receive assistance or restitution if applicable. People who believe they may have been impacted can submit information through a form provided by the agency.
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Operated by Valve, Steam is one of the largest digital marketplaces for PC games. It boasts millions of active users worldwide. The platform allows developers to publish and sell games directly, a model that has helped independent creators reach large audiences but has also occasionally been exploited by malicious actors.
This is not the first time malware has slipped onto the platform.
Last year, security researchers uncovered several small games on Steam that contained hidden malicious software. Those titles worked as simple games but were ultimately designed to trick players into installing malware on their systems. Steam later removed the games from the store after the threat was identified, though some users had already downloaded them.
Cybersecurity experts say such attacks often rely on a Trojan horse approach. The malicious code is bundled inside software that appears legitimate, allowing it to bypass suspicion and gain access to a user’s computer once installed.
The FBI has not said how many users may have been affected in the latest case, and the investigation remains ongoing.