Dr. Johnson collaborate with colleagues in the United Kingdom on an international academic journal (editing duties). Dr. Johnson and his colleagues are interested in collaborations in the form of contributors, so it's an "open" project in that way. Contributors have come from all corners of the earth, and the journal draws a thoroughly international contributor-ship/readership.
Dr. Johnson is also involved in a new project -- a dual-language journal (English/Polish) -- as a debut issue contributor. The journal is specifically designed to welcome traditionally self-isolationist Polish scholars into the international community of ludology scholars (thus, it has international and diversity implications).