: Right-click on Black.Mesa.Definitive.Edition-CODEX.part1.rar and select "Extract Here." WinRAR or 7-Zip will automatically pull data from Part 3 during this process.
: Black Mesa Inbound, Anomalous Materials, Unforeseen Consequences (where you find the Crowbar ). Black.Mesa.Definitive.Edition-CODEX.part3.rar
: Open the resulting .iso file using Windows Explorer (Mount) or a tool like PowerISO . : Right-click on Black
: Copy the contents of the CODEX folder from the mounted drive and paste them into your game installation directory, overwriting existing files. 🚀 Game Overview & Mechanics Lambda Core. End Game : Xen
: Office Complex, Blast Pit, Surface Tension, Lambda Core. End Game : Xen, Gonarch's Lair, Interloper, Nihilanth. 🔋 Survival Tips