what firewall port do i open for a game called gamebound. if i run
gamebound with my firewall software on my computer re-boots. if i turn
off my firewall the game works fine. i use zonealarm personal , the
free one.

for zonealarm, you should actually just tell it the executable (.exe)
is permitted to act as a server.

Restoring the ZA Control Center, go to "Program Control" on the left,
and click the "Programs" tab on the top right.

Click the "Add" button and browse for your application/game's .exe
file. [OK] Then give it all the permissions...

This probably should work for you. If not, then consider getting a
router to handle the firewall without worrying about software
preventing you from functioning.

This is a free comment.