: To fix stuck scenarios or use cheats, enable the developer console via Options > Keyboard > Advanced > Enable Developer Console . You can then press the tilde ( ~ ) key to open it, as noted on Reddit .
: To unlock the secret "Pizza" ending, you must carry Dr. Horn's pizza box from the cafeteria in Questionable Ethics all the way to the final boss in Xen, as detailed on the Combine OverWiki . Are you running into a specific error code or
: Unlike the original Half-Life , health is sparser in later levels. Always backtrack to wall-mounted Health Chargers before moving to a new area. Quick Stats Black Mesa-CODEX
: A standard playthrough takes about 15 hours , while 100% completion (including achievements) can take up to 27 hours , according to HowLongToBeat .
: If you encounter missing or black textures, users on Reddit suggest checking your DirectX version or updating your GPU drivers to ensure compatibility with the game's lighting engine. : To fix stuck scenarios or use cheats,
: Ensure your antivirus hasn't quarantined the Steam_api64.dll file, which is a common issue with CODEX releases. You can find troubleshooting steps for this on Reddit's r/CrackSupport .
: Run the game as an Administrator to ensure it has permission to write save files to your C:\Users\[YourName]\AppData or the game installation folder. Gameplay & Survival Tips Horn's pizza box from the cafeteria in Questionable
: If a level is too difficult, use these commands in the console: god : Toggles God Mode (Invincibility). give currentammo : Refills ammo for your current weapon.