I want to play CS on 5Eplay. What do I need to download?

Of course, you need CS 1.6, just add pure CS and SXE to 5E.

Open SXE to access the 5E server before playing CS.

By the way,

Never use 5E CS to play 175 and other platforms.

Because they will give you a lot of mod.

Your CS will be impure.

Incompatible with SXE.

You can't get into 5E.