FBI Investigates Malware Hidden in Several Steam Indie Games

Malicious files were discovered inside several indie games distributed through the Steam platform in March, prompting a federal investigation in the United States. The Federal Bureau of Investigation began collecting reports from players after security researchers linked multiple titles on Steam to malware that could infect users’ computers. Some of the affected games include BlockBlasters, Chemia, Dashverse, Lunara, and PirateFi.

Malware Found Inside Steam Game Files

Players and security analysts reported that several small indie games on Steam contained hidden files that installed malware. The games launched and played like normal titles, but they also ran additional software in the background after you installed them.

Researchers found that the malicious code sat inside the game files themselves. It did not rely on a separate installer. Once active, the malware downloaded additional software and opened the door to unauthorized access on an infected system.

FBI Asks Players to Check Their Libraries

Reports about the infected games spread online, and US authorities started investigating the case. The Federal Bureau of Investigation asked players who downloaded suspicious Steam titles to check their computers and report possible infections.

The FBI’s Internet Crime Complaint Center also asked affected users to file reports. Investigators collect technical data from infected systems to understand how the malware worked and how the files spread through the platform.

Valve Removes the Suspicious Games

Valve removed the reported titles from Steam after the issue became public. The company also warned players to review their libraries and delete the affected games if they installed them earlier. Investigators have not identified the people who uploaded the infected titles to the platform. Authorities also have not confirmed how many users downloaded the compromised games.

Steam remains the largest digital distribution platform for PC games. The service hosts thousands of indie titles alongside major releases. Malware cases on Steam remain rare, but past incidents show that harmful files can appear in user-submitted content before moderators remove them.