

It’s been forever since I messed with this sort of thing, but could you use something like Wireshark to see what programs are sending network traffic? I see that you’ve already gotten a reply about pixel dungeon specifically, but if this is an ongoing concern for you it might be useful to know how to check yourself for an arbitrary program. Iirc you can just run it and it will show all packets being sent/received by your machine and which programs are sending them. I haven’t used Wireshark in over a decade, but a quick google seems to show it still exists, and if it’s like I remember then it shouldn’t be hard to learn how to use it.
Parts of it remain indecipherable without the social context, however, as the writer explicitly assumes a mutual knowledge of some set of unspecified rules.