If you do not see these folders, you did not create the ZIP file correctly. Open the new game.zip file and verify that you see the folders portal, nxcontent, and platform in the root.Rename the new archive to game.zip if it isn't named that already.(You can easily do this by by selecting all three folders in File Manager -> right click to open the context menu -> open the 7-Zip menu -> select 'Add to xyz.zip'.) Create a new ZIP archive using 7-Zip with the folders portal, nxcontent, and platform.Open the following files in your favourite text editor and replace all instances of hl2 with portal:.Rename the portal/resource/hl2_.txt file to portal/resource/portal_.txt.Copy the hl2/sound/music folder from your Half-Life 2 game files to hl2/sound in the extracted archive folder.Copy the hl2/maps folder from your Half-Life 2 game files to hl2 in the extracted archive folder.(OPTIONAL) Open nxcontext/rom_boot_params.txt in your favourite text editor and add the following to the end of the file:.Rename the nxcontent/hl2 folder to nxcontent/portal.Delete the portal and nxcontent/portal folders from the extracted archive folder.Extract the game.zip archive to a folder.Dump the Portal 1 title and extract its romfs to somewhere on your PC.A copy of Half-Life 2 (I used the Android version, the PC one might work).WARNING: While this mod should be fairly safe to use, I do not take any responsibility if your Portal save data is deleted, you get banned from Nintendo Switch Online, or if your Switch explodes. For help with modding your console, see the NH Switch Guide. I will not provide support for questions like 'how do I install Atmosphère / CFW', 'how do I make an emuMMC', 'how do I extract games', etc.

NOTE: I am assuming that you have basic knowledge about how modding games on the Switch works. Thank you to Bringus Studios for fixing save files not showing up! Please be aware that this isn't a great way of playing Half-Life 2 - do not expect this mod to work perfectly. This is a guide for running Half-Life 2 on your Switch.

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