Portal 1 BTS
Jump to navigation
Jump to search
Portal 1 does not have many themes , there is only normal test chambers and bts. Portal 2 on the other hand , has many themes. This article will talk about how to make bts in portal 1.
Noticable Elements
In many maps with this style there are catwalks , vactubes , wall pipes , deceptive skyboxes , and observatories that you can
- hi there *