Black Mesa-codex -

: 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 Black Mesa-CODEX

: 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 . : To fix stuck scenarios or use cheats,

: 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 Horn's pizza box from the cafeteria in Questionable

: 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.