https://steamcommunity.com/sharedfiles/filedetails/?id=724136176
https://steamcommunity.com/sharedfiles/filedetails/?id=1231140256
https://steamcommunity.com/sharedfiles/filedetails/?id=984032659

like

This is essentially 100% the same as playing the original game albeit it's free and of course it functions the same. The update makes the game visually nice to play but this is Half-Life you need to experience this masterpiece of the game whether you play a free mod or the base game by Valve this is still worth playing through just what the mod had offered.