[UPDATE 11/28/22] Super Punk Games added a post to the game’s Steam page on November 26th stating that the studio would be shutting down and that The Last Leviathan would be removed from sale. They did not specify a date for the delisting and as of the morning of the 28th the game remains available on Steam.
Short notice here: GOG.com announced earlier this morning that The Last Leviathan will be leaving their platform on November 24th at 4pm UTC (11am EST). The game launched in early access on GOG.com and Steam in 2016 with the last update from the team happening back in 2018. Given the extended silence and lack of updates it seems likely that the Steam release will also be leaving soon although there’s been no confirmation so far.
Thanks to Auster for pointing out the news. I’ve added the date to the Watch List calendar and we’ll have a page up on the site later.