This is the million-dollar question. In cybersecurity, no pirated executable is 100% safe. However, we can analyze risk levels.
101mrar was a solid choice in the early 2010s but has been eclipsed by FitGirl (best for low bandwidth) and DODI (best for speed). 101mrar repack
The primary goal of a repack is to reduce the file size of a game. Modern games can exceed 100GB, which is impractical for many users to download. This is the million-dollar question