Niels K. is a user on mastodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse. If you don't, you can sign up here.
Niels K. @nielsk

FYI: I just paid for a copy of Doom 1 (the GBA-version though) ...
niels.kobschaetzki.net/post/20

@nielsk A friend of mine is still playing DOOM, he plays it vanilla and with various mods. Still very happy with it. Just a few weeks ago we even played it co-op :)