While there is no formal academic paper on this specific error, extensive technical documentation and community guides identify the "Connection to the game failed" error in Sniper Elite 3 as a persistent networking conflict.
Both players in a co-op session should ensure these exceptions are in place or temporarily disable their firewalls to test the connection. Run as Administrator Right-click the Sniper Elite 3 launcher or executable and select Properties Compatibility tab, check Run this program as an administrator Verify Game Integrity In your Steam library, right-click the game > Properties Installed Files Verify integrity of game files sniper elite 3 connection to the game failed top
If all else fails, your local save data may be corrupted, causing matchmaking to fail. While there is no formal academic paper on
Before you give up, run this checklist:
: Verify your system software and the game are fully updated. For PlayStation, ensure your PS Plus subscription is active. DLC Installation If you're playing on console, ensure your NAT