Discuz! X3.4 is a relatively new integrated engine from Comsenz (developer Discuz!, uCenter, UCHome, ECShop, ECMall, ...). The main purpose of the engine is to simplify the integration of various services on one site. In fact, it is a technologically new, software solution made in PHP and MySQL to create a high-performance and multifunctional resource with elements of a social network. Roughly speaking, it is a symbiosis of a social network and a forum in one bottle. I want to inform you that this forum is completely free for non-commercial use!