I have tried multiple "similar" games after I finished the last update to scratch the itch, but nothing measures up to this creator's work, (if someone can rec me some games that are similar, please do, maybe I missed some). The animations, the character models, the story, the pacing... everything is peak perfection. This really is top tier for me. TOP TIER. I hope Eternum isn't the last project this creator will work on. Amazing, truly amazing.
Ill reccomend you to try Projekt:Passion and Fates Collide, these are both story-focused game. Projekt:Passion has an interesting story, really good sex scenes like eternum and there are ANIMATED with VOICE ACTING cut scenes inside the game tho so i definitely recommend it. And Fates Collide has a decent story and fun characters. Some characters from Eternum is in the game like Micaela and Chang (they're the only characters from eternum in it).