Originally posted by Qd35n1q:

I would like to ask help from someone that know Hammer Tool well enough,
for more information described in my reddit post

It's fairly old, very outdated, and has limitations - not many people really mess with it anymore, the best information you'll likely get other than tutorial videos on YT is over there;

Source SDK General Discussions;
https://steamhost.cn/steamcommunity_com/discussions/forum/17/

Source Level Design;
https://steamhost.cn/steamcommunity_com/discussions/forum/18/

Originally posted by Mad Scientist:

Originally posted by Qd35n1q:

I would like to ask help from someone that know Hammer Tool well enough,
for more information described in my reddit post

It's fairly old, very outdated, and has limitations - not many people really mess with it anymore, the best information you'll likely get other than tutorial videos on YT is over there;

Source SDK General Discussions;
https://steamhost.cn/steamcommunity_com/discussions/forum/17/

Source Level Design;
https://steamhost.cn/steamcommunity_com/discussions/forum/18/

So how can i build a custom map than? Any suggestions?

Originally posted by Qd35n1q:

Originally posted by Mad Scientist:

It's fairly old, very outdated, and has limitations - not many people really mess with it anymore, the best information you'll likely get other than tutorial videos on YT is over there;

Source SDK General Discussions;
https://steamhost.cn/steamcommunity_com/discussions/forum/17/

Source Level Design;
https://steamhost.cn/steamcommunity_com/discussions/forum/18/

So how can i build a custom map than? Any suggestions?

The mix of youtube tutorial videos, gamebanana and those 2 hubs can help you make a custom map for Source games. From there, it's learning as much as possible to achieve the closest you can to the desired goal.