: Does it work on Windows 10 and 11, or only older systems?

Scan any repack file with VirusTotal . If more than 5 engines flag it as a trojan (not just "hacktool"), delete it immediately.

Different techniques like LoadLibrary, Manual Mapping, or Thread Hijacking offer varying levels of stability and compatibility with the target application.

Even if the injector works, your non-Steam or Steam account becomes a target. Many repacks send your SteamID and IP address to a remote server.