Recently, at long last, the 2020 edition of Eludamos: Journal for Computer Game Culture, a special issue “On the Philosophy of Computer Games,” came out — followed immediately by the 2021 issue, so you might have missed it!
Included, among other things, is my article “Gaming and the ‘Parergodic’ Work of Seriality in Interactive Digital Environments,” which begins the work of reading seriality in a double register, as both a medial and a social phenomenon (following Sartre’s late work in the Critique of Dialectical Reason, among others).
Be sure also to check out Doug Stark’s excellent “Training for the Military? Some Historical Considerations Towards a Media Philosophical Computer Game Philosophy”!