After visiting Empire Bar a few times I feel like I've got a good handle on when to go, and when to pass.
When To  Go:
-Thunder playoff basketball games. They have TV's around the bar and it's never too packed. However, make sure the TV you sit by has sound working and call ahead to make sure they turn on the game.
- Play pool. They have two tables in the center of the bar.
- Patio-ing. (Weather permitting.)
- When you feel like being mysterious and/or don't want to get fixy. The lights are quite dim.
- When you need a friendly bartender.
Don't come here after getting dolled up. The demographic of patrons I've seen ranges from probably 26- 65 year old men and women.
The place is so chill, bro. Nothing over the top- a solid local bar to share a drink with a bud.