The Federal Bureau of Investigation (FBI) is investigating a series of malware-infected video games that appeared on the popular PC gaming platform Steam. Now the agency is asking players who may have downloaded these compromised titles to provide information that could help identify victims and track down those responsible.
FBI searches for victims during malware investigation
The investigation is being led by the FBI’s Seattle division, which recently launched an online portal asking potential victims to report whether they have installed certain Steam games that contain malicious software. According to the agency, several titles distributed through the platform between May 2024 and January 2026 were found to contain hidden malware that could steal personal data and access user accounts.
Authorities have already identified a list of games they believe will be affected. These include BlockBlasters, Chemia, Dashverse (also known as DashFPS), Lampy, Lunara, PirateFi, and Tokenova. Many of these titles were small or obscure indie projects, but still garnered enough downloads to cause financial and security harm to some players.
In some cases, the malware embedded in these games is designed to steal account credentials, browser cookies, and other sensitive information from infected computers. One of the reported incidents involved a player losing access to several online accounts after malware extracted login details and distributed fraudulent links to contacts.
Valve, the company that runs Steam, acknowledged the investigation and confirmed it was cooperating with law enforcement. Some of the affected games were removed from the platform after malicious activity was discovered.
Why investigation is important
The FBI’s investigation highlights growing concerns about cybersecurity in the gaming ecosystem. Steam has over 100 million monthly users, and Steam’s public marketplace allows developers around the world to publish their games. Although most titles on the platform are legal, the size of the market means malicious actors can sometimes insert harmful software into game downloads.
Malware disguised as a game can be particularly dangerous. This is because users often trust the platform and may not suspect that the titles they download may contain harmful code. Once installed, these programs can steal sensitive data such as login credentials, cryptocurrency wallet information, and personal files.
Malware-infected games are rare on Steam, but security experts warn there could be serious consequences for affected users. Stolen data can lead to financial loss, identity theft, and compromise of online accounts.
Why players should care
For gamers, the survey serves as a reminder that even trusted platforms are not completely immune from cyber threats. Anyone who downloaded the identified games during the affected period is encouraged to review their system for suspicious activity and contact the FBI if they believe they were affected.
The agency has launched a dedicated reporting form where potential victims can submit details about their experiences. According to the FBI, identifying victims is an important part of federal cybercrime investigations. This will allow authorities to determine the scope of the attack and potentially recover losses for those affected.
Players who respond may be contacted by investigators with additional information that may help identify the individuals responsible for distributing the malware.
This isn’t the first time malware has been planted using games.
Last March, Valve removed the title ‘Sniper: Phantom’s Resolution’ due to suspicions of malicious activity. A few months before that, the company also removed a survival game called ‘Pirate Fi’ and recommended users to run a full system scan using a trusted antivirus if they have a copy installed.
In 2024, Activision began investigating the Infostealer malware, which targets players with the intent of stealing their login credentials. In 2023, hackers used self-spreading malware to target Call of Duty: Modern Warfare 2, one of the most popular games at the time. Electronics Art also had an embarrassing situation where an Apex Legends tournament was postponed due to bad guys taking over players’ computers mid-match.
The FBI’s investigation is ongoing and authorities are working to gather information about the threat actors behind the malicious game. Investigators hope to gather reports from affected players to determine how the malware spreads, identify any relevant accounts or infrastructure used by the attackers, and potentially bring criminal charges.
Valve is expected to continue to support the investigation while strengthening its platform moderation systems to prevent similar incidents from occurring in the future. Meanwhile, cybersecurity experts recommend that gamers maintain updated antivirus software and be cautious when downloading unfamiliar titles, even from reputable platforms.
As the investigation progresses, more details about the malware campaign and its impact on Steam users will be revealed, providing more insight into how cybercriminals attempted to exploit one of the world’s largest gaming platforms.