/vr/ - Retro Games

>>6243941

That type of modding really wasn't a thing back in HL's modding heyday everything was TC or just custom maps.
Outside of what you mentioned there is: Half-Nuked (Duke in HF), Counter Life (CS1.6 in Half life), Half-Life Redux or MMod (modernized the half-life experiance improved the engine and gameplay, never played personally but some people like), and some really meme ones like crack-life (and the numerous imitations) which turn everything into a terry-wad experience.

Going on a tangent every mod for Half-Life is essentially a PWAD. You can still access the HL campaign using the console "map" commands to start it up in every mod. So some mods they have their own custom campaign can actually be used in the base campaign, your millage might vary depending on how much the mod changes, but some are pretty surprisingly playable from start to finish. That being said this is all for the WON version of HL, no idea if this still works for the Steam version.

Side note is that Sven-Coop allows the HL campaign to be played with extra features and weapons and such even when played solo, so that might be worth looking at.