Half-Life: Alyx is due to launch in March 2020; alongside it, Valve plans to release tools for its Source 2 engine which will let community creators build more VR content for the game and beyond.

With its high-def visuals, immersive real-time combat, and realistically-reactive environments, Half-Life: Alyx looks like the killer VR app. But the real excitement could come after launch as gamers ...