Have you downloaded and played Portal Revolution?
https://steamhost.cn/app/601360/Portal_Revolution/

I would also recommend Sector 5's work:
https://steamhost.cn/steamcommunity_com/profiles/76561197982587236/myworkshopfiles/

And here are a few of mine (I hope you like them):
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3131522789

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3140571910

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3150126689

Originally posted by Zeaxey:

i already beat the game and theres not much to do in it now

There are a lot of community built test chambers to explore.
Recommend highly “Unreal Chamber 1-4” by Anna

Originally posted by Pond:

Originally posted by Zeaxey:

i already beat the game and theres not much to do in it now

There are a lot of community built test chambers to explore.
Recommend highly “Unreal Chamber 1-4” by Anna

Yeah - I'd have agree with that recommendation. Those were so much fun to solve.

https://steamhost.cn/app/601360/Portal_Revolution/

https://steamhost.cn/app/1255980/Portal_Reloaded/

https://steamhost.cn/app/317400/Portal_Stories_Mel/

These are the 3 main Portal mods. If you don't mind paying, Aperture Tag is a good mod.

https://steamhost.cn/app/280740/Aperture_Tag_The_Paint_Gun_Testing_Initiative/

On the workshop, there are quite a lot of good maps.

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1648616634

https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=68540935

https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=104612418

https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=318558379

https://steamhost.cn/steamcommunity_com/workshop/filedetails/?id=342176397

These are just a few of the many mods on the workshop. I would definitely try them out.

https://steamhost.cn/app/1255980/Portal_Reloaded/

https://steamhost.cn/app/1636310/Portal_Forbidden_Testing_Tracks/

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1544898437

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=96685421

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=240766601

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=318558379

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=104612418

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=68540935

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=102830943

I have tried Portal: Revolution, but I have close to little space left so I uninstalled it (don't ask me why i have little space left, a lot of storage is taken up by stupid stuff), but thank you all for the recommendations. I will definitely play some of these.

Forbidden Testing Tracks is one of the worst things I have ever played.

Originally posted by Mλrtin2H:

Forbidden Testing Tracks is one of the worst things I have ever played.

don't wanna be rude, but that's true. i wouldn't suffer through the whole thing. the best way to enjoy it is just by noclipping through it.