“For example, the time in Portal uses material texture switching, so I remade the time in Final Cut Pro and turned it into a panorama video that Source 2 could playback in the game.” Seeing as some engine features were either missing, broken, or vastly different from their Source 1 counterparts, TheBoxTrot had to find new ways to replicate them using the new engine.

TheBoxTrot tells me that the process of modding HL:A was difficult thanks to the incomplete nature of Source 2 in HL:A.

“With a bigger team, we hope we can integrate new puzzles, more unique VR-friendly mechanics and vastly improved assets,” the description for the addon explains.Getting the tools was the easy part using them to effectively recreate Portal in Half-Life: Alyx was a different story. The first playable demo of the addon for Half-Life: Alyx was put together by four people in less than a month and features more than 200 models that are ported or new, according to the creators, and they’re offering the ApertureVR Source Pack with “prefabs, models, scripts, maps and more that allows creators to design more custom test chambers in VR.” Last year we looked at another mod that let you walk through a Portal 2 map and pick up some items, but this latest one actually offers a bit of gameplay and its creators hope it can serve as the basis of much more. There’s no portal gun here, there’s only four test chambers and we were only able to successfully complete the first two - there seemed to be a progression bug with the third one at the time of this writing. The mod is called ApertureVR – Thinking Without Portals and it does a fantastic job recreating the look, feel and sound of Valve’s classic Portal 2 adapted with Half-Life: Alyx’s gravity gloves to pull cubes over to you. A new addon for Half-Life: Alyx offers a couple test chambers inspired by Portal 2 that you can solve in VR without a portal gun.

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