: Right-click Tomb Raider: Legend in your library > Properties > Installed Files > Verify integrity of game files .
If you own the game on a digital platform, do not download files manually. The launcher can automatically detect and replace corrupted files. download bigfile000 for tomb raider legend new
If verification fails, the cleanest way to get a fresh bigfile.000 is a full reinstallation. : Right-click Tomb Raider: Legend in your library