Get military equipment, scientific prototypes, and emblematic weapons through a highly detailed environment.

Amazing graphics and effects you’ve never seen on a source engine.

Deal with the classic enemy army, updated with new features and exciting AI.

19 chapters that jump over the dimensions, fight in top-secret laboratories, run over harsh desert landscapes, slip-on stalled railways.

A brand new soundtrack and voice actors create a more exciting experience than ever.

You may also try Stellaris Galaxy Edition PC Game Free Download.

Minimum Requirements

OS: Windows® 7 (32/64-bit)/Vista or Greater

Processor: 2.6 Dual Core Processor or Greater

Memory: 6 GB RAM

Graphics: 2 GB Dedicated Video Card or Greater

DirectX: Version 9.0c

Network: Broadband Internet connection

Storage: 20 GB hard disk space available

Recommended Requirements

OS: Windows® 7 (32/64-bit) or Greater

Processor: 3.2 Quad Core Processor or Greater

Memory: 8 GB RAM

Graphics: 4 GB Dedicated Video Card or Greater

DirectX: Version 9.0c

Network: Broadband Internet connection

Storage: 20 GB hard disk space available

Download all parts from the download links given below.

Right-click on the 1st part and click on “Extract here”. Other parts will be automatically extracted.

You need Winrar installed to do it.

Now Right-click on the extracted Iso file and click on “Extract here” again.

OR You can also open iso with software called “UltraISO”. Click on the “Mount to virtual drive” icon on the 3rd bar on top of UltraISO to mount it. Then go to the virtual drive and open it. This is usually just after My Computer.

Once mounted or extracted, Right-click on the file named “Setup.exe” and click on “Run As Administrator” to start the game installation.

Wait for it to install the game on your pc.

Once the installation is complete, open the folder named “CODEX” and copy all the files from there and paste into the directory where you have installed the game. For example, if you have installed the game in “My Computer > Local Disk C > Program files >“Black Mesa Definitive Edition” then paste those files in this directory.

Click on replace if it asks for it.

Right-click on the game icon .exe and then click on “Run as Administrator” to start the game.

Enjoy!