What engine does this forum use?

[Pixelatedd]

Hiya!

I'm staff on another game on another server, and I'd like to create a forum like this for it!
If somebody could inform me what the engine used for this is, thanks!

[I've noticed the same type of forum on separate servers.]

 

[squid legend]

apply for dev

 

[Nashi]

XenForo

 

[Pixelatedd]

XenForo engine? Thanks!