Many improv games have 'conditions' for play.
For example, Touch Talk requires the actors to be in physical contact whenever they speak. If they are not in physical contact then they must not speak.
These conditions offer a clear judgment of RIGHT and WRONG.
Combine this type of improv with a bar and you have
The object? Improv and Drinking. Improv game meets Drinking game.
Have you seen anything like this?
Does it sound interesting?
Would you attend an improv night like this?
Would you perform in one?
Do you belong to AA?
Can you be my designated driver?