how to change my game nickname now?

[cosloli]

the support website seems not working anymore now, so where to change?

 

[Cody]

Clear Save - it's the only way now. A complete reset, in other words.

 

[Fenris Wolf]

the support website seems not working anymore now, so where to change?

When you start a new game.

Edit: Ninja'd

 

[kylania]

Might be worth a customer service ticket if it's really bothering you.