Among Us Xgameruntime.dll 【2026 Update】

Sofia swore she’d never seen it before.

Because when a client loaded Xgameruntime.dll , the game changed.

From: Systems Analyst M. Chen To: Internal Game Dev Team Priority: CRITICAL Among Us Xgameruntime.dll

Date modified: .

Size: 87 kilobytes.

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.

The user’s IP was from a town in Alaska. No internet service provider had coverage there for 200 miles. And the attached screenshot showed a lobby with four players: Red, Blue, Yellow, and a color that wasn’t in the game’s palette. A deep, shifting black that seemed to absorb the pixels around it. Sofia swore she’d never seen it before

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.