Last Tumblr update was AUG 29 2021. The two dev's twitter was last twitted Feb 15, 2018 and Nov 25, 2021. And the YouTube channel hasn't been updated in 4 years, Apr 17, 2017. The video's music is nice. They have a gmail you can contact navigame.media@gmail.com.
I'm honestly surprised that the latest update was in late 2021, I thought the project was abandoned. They don't seem to post often, so even though it's been half a year since the last update, I'd say the chances this project is still active is high.
Do note that I just briefly skimmed their socials, didn't check indepth for any updates. They might have more recent updates, I don't know.
Do hope this answered your question, have a good day.