Seasons Greetings in the Abyss by Sleigher
A Yuletide reinterpretation of the Slayer classic, Seasons in the Abyss. Featuring members of Haken, Protest the Hero and Dream Theater.
It's not quite what you asked for as it's not an entirely new song, they add plenty of flourishes to it and entirely new lyrics, plus it's just so silly and fun
Never heard of this game before, and though the reviews are fairly decent (good-ish), the trailer does look great and, as stated in the article, 'lovely'. The likening to Redwall defninitely harkns back to my childhood reading the books and the gameplay and overall game design certainly intriguing, so I think I'll probably pick this one up and hopefully the sequel is just as intriguing. Thanks for posting!