Hos can I change my name in the game?

While in the main menu, go to shop > nickname > change nickname. The first use is free, but after that, they will charge 300 souls.

You should be in a game after that you should click the three lines on the top left, After that scroll down to the friends list and then click on the picture and click invite.

You can create game in the story mode and escape mode. Enter the mode you want and click the create game, name the game, add 4 digits password if you wanna play with friends only or with friend and others who not friend, you don't need add password. When you enter the mode what created game, click chat with friend and add friend to play with you.