FBI Probes Malware Hidden in Steam PC Games

The FBI is investigating the distribution of malware through several video games hosted on Steam, the popular PC gaming platform.

The agency is seeking victims whose computers may have been infected after downloading games believed to contain malicious software.

The FBI believes the threat actor primarily targeted users between May 2024 and January 2026. The investigation targets PC games including BlockBlasters, Chemia, Dashverse, DashFPS, Lampy, Lunara, PirateFi, and Tokenova.

Last summer, Steam removed several titles, including Chemia and PirateFi, after they were discovered to include malware. While the infected titles appeared to be games and were approved for sale on the platform, the FBI states they installed malware on players’ computers.

Malware targeting gamers has previously appeared in game downloads and third-party tools. In 2023, a fan game based on Nintendo’s Super Mario franchise contained malware capable of hijacking cryptocurrency wallets and stealing passwords. In March 2024, players seeking cheat software for Call of Duty were exposed to malware that could drain Bitcoin wallets. In December, an infostealer malware was identified in pirated mods for Roblox.