Steam can detect modified .dll files (like Steamworks.fix ), resulting in a VAC ban or account suspension.
Add Devour as an exception in your Windows Firewall settings to allow public/private connections.
Unofficial patches often cause frequent crashes, desync, or broken AI behavior. How to Fix Multiplayer (The Safe Way)
Players on different game versions often can't see each other's lobbies.
Some users struggle with "Failed to Connect" errors even on legitimate copies.
If you own the game and are having trouble connecting with friends, try these steps instead:
Most .rar files containing "online fixes" are packed with trojans or keyloggers.
for specific error codes (e.g., "Room Not Found"). Network optimization tips to reduce lag during co-op play. Official patch notes to see if your issue is a known bug.