I tried via Steam, But ET:Legacy was what solved things for me. I think the reason for ET:Legacy is that original ET is not compatible with newer OS's, other software and hardware?
In any case, how sad this game didnt become the CS. I played this like crazy when i was a kid, I had a serious period with this game. And then CS came up on top, while this game is much more fun actually.
I wish someone could remake the game for modern platforms, and keep the other mechanics approximately the same.

You can setup ETL to run through Steam instead of the current modified 2.60b
https://steamcommunity.com/sharedfiles/filedetails/?id=2800452649

Thx!

it would have to start by updating the quake 3 engine

I played both ET and CS competitively. I like ET way more. Lots of variety, more aggressive play. Sad it never got the traction CS did.