Among Us: Xgameruntime.dll

Cannot delete Xgameruntime.dll: file is currently in use by: SYSTEM

“Has anyone seen my friend Sofia? She was in my lobby. She was pink. Then she wasn’t.”

Size: 87 kilobytes.

“Crewmate. You have tasks. Complete them. And do not look for me in the vents.”

RUN GAME LOOP

The DLL was small. 87 kilobytes. Its only export was a function called RunGameLoop_Imposter . Inside, the assembly was clean—too clean. No inefficiencies, no comments, no debugging symbols. Professional. And deeply, deeply wrong.

It started as a routine patch. Tuesday, 3:47 AM. The Among Us server logs showed nothing unusual—just the usual 3 AM dip in players, a few lobbies in Tokyo, a handful in São Paulo. Then the error reports hit. Among Us Xgameruntime.dll

We pulled the plug. Took the game offline entirely. And still, people reported playing.