Half-Life 2: Episode One
Escape City 17 in room-scale VR, with hands that collide with the world after the December 2023 update.
The catch: Updates have been sparse since April 2024, going by Steam news.
Will it run on your rig?
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Launch Kit
Get Half-Life 2: Episode One running
Steps are general until you ; then the runtime step matches your headset.
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Set your VR runtime
This mod runs through SteamVR. Start your headset's PC link first (Quest Link, Air Link or Virtual Desktop), then start SteamVR.
General step from us -
Install Half-Life 2: Episode One (Steam)
Install it and launch it once in flat mode to finish first-time setup, then quit.
General step from us -
Have these ready
Half-Life 2: Episode One owned on Steam · SteamVR-compatible headset and controllers · Windows 10
From the creator's guide -
Creator step 1
Own Half-Life 2: Episode One on Steam
From the creator's guide -
Creator step 2
Add the free Episode One VR Mod from its Steam store page
From the creator's guide -
Creator step 3
Start SteamVR with your headset
From the creator's guide -
Creator step 4
Launch it from your Steam library
From the creator's guide -
First launch in VR
Put the headset on, then start Half-Life 2: Episode One the way the creator's guide says. Calibrate your height in the first area.
General step from us
Stuck?
Last Steam news post I saw was the April 2024 update
Reported on the creator's page or the linked sources. Known issue
Black screen in the headset
This mod runs through SteamVR. Start your link (Quest Link, Air Link or Virtual Desktop) first, then SteamVR, and only then the game. If SteamVR shows the headset but the game is flat, close the game and launch it again the way the creator's steps say. General tip from us
Controllers don't show up
Start Link, Virtual Desktop or SteamVR before the game, and make sure the controllers are awake before launch. General tip from us
Stutter or low frame rate
Lower the in-game resolution or render scale first, then shadows and volumetrics. Close overlays you don't need. General tip from us
The mod didn't load at all
Recheck the game version against the creator's page; a game update is the most common cause. Then reinstall the mod files. General tip from us
Prefer a guide that talks back?
Copy a prompt for Claude Code on your PC. It asks before every download or change, and only uses the official page.