It is not a good idea to announce game names on the PA system. 
There are often vendors, guests, etc. in our building that 
should not be informed about our future games. Some names are 
descriptive enough that they could actually gain information: 
Tetris, Battle Sprint, Hydra, etc.

Instead, you could use the project leader's name ("Logg's review 
is now starting"), the name of the location ("Ed, please come 
to the Alpha labs"), etc.

Thanks!!

John