If you’ve ever wanted to experience Half-Life 2 in VR but couldn’t find a straightforward way to get it running, you’re in the right place. This guide walks you through the full setup process using VEX, a tool that allows non-VR games to be experienced in virtual reality. Here’s how to get everything up and running smoothly.

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1. Initial Game Settings

Before launching the game in VR, configure your in-game settings appropriately:

• Disable Motion Blur — Essential for a clearer, more comfortable VR experience.
• Enable Windowed Mode — You can leave the resolution at your native display (e.g., 1920 x 1080), even though some recommend 1280 x 1024. Most players report no issues keeping it native.

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2. Set Up VEX for Half-Life 2

• Launch the Oculus App – Ensure your headset software is running.
• Start VEX – It should now be visible in your taskbar.
• Right-click on VEX and select Configure VEX.
• In Local Profiles, type halflife 2.
• Right-click on it and select Create a new profile based on this.
• Click OK to confirm.

There is no built-in game optimizer profile for Half-Life 2 in VEX, so you’ll need to configure some options manually.

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3. Set the Field of View for VR

To make the in-game FOV VR-friendly:

1. Right-click on your desktop.
2. Select New > Text Document.
3. Name it: autoexec.cfg.
4. Open it and type the following line:

default_fov 120

5. Save the file using Save As, selecting All Files as the type.
6. Copy the file and paste it into your Half-Life 2 installation folder:

SteamLibrary > steamapps > common > Half-Life 2 > hl2 > cfg

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4. Final Preparations Before Launching

• Make sure VEX and the Oculus app are running.
• Open Steam, then click Play on Half-Life 2.
• When the game loads, you’ll likely see the screen zoomed in and distorted — press middle mouse button to zoom out and center your view.

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5. Adjusting In-Game Settings for Performance

Once in-game:

• Reduce lighting settings and unnecessary visual effects to improve frame rate, especially while recording or streaming.
• If the skybox appears to move opposite to your head motion — this is a visual bug but doesn’t affect gameplay.

Use the following tabs in your in-game VEX configuration to match optimal settings:

• Image Settings
• Head Tracking Settings

Pause and match your settings carefully using the video walkthrough if needed.

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Final Thoughts

You’re now ready to dive into Half-Life 2 in full VR! While VEX isn’t perfect and some visual oddities may occur, the immersion is well worth it. Just remember to save your settings often and keep your FOV set correctly for a smooth experience.

If this guide helped you, leave a like or a comment with questions or requests for future VR game tutorials.

Peace out and enjoy City 17 like never before!