R/Lutris has been banned from Reddit

"This subreddit was banned due to being unmoderated."

This just means that whoever had control of the subreddit has deleted their account or not logged in for 90 days. It happens automatically to prevent abandoned subreddits from filling with spam. There are 2.8 million subreddits so this is going to happen hundreds of times a day.

There is a process for people to ask to take control of an unmoderated subreddit, you just post to r/redditrequest and wait two weeks.

I think this is project link: https://github.com/lutris/lutris

what is R/Lutris about ?

I'd expect it to be people asking for support using the Lutris game manager. From an archive.org capture, it seems like that's accurate: https://web.archive.org/web/20220507080731/https://www.reddi...