There is a Casino near the El Paso hotel. A very modest Casino. Casual clothes. Don't expect too much.
Other thing that you may doo is to walk along the cafes , get an icecream and....go to a disco on the other side of the Morro ( the big sand hill )...
Dress Code: As you please
It's not a spectacular casino, but it's fun,cheap, and you only need casual attire!
Dress Code: Casual attire
No Tie required!