VNs in general don't excite me. I've stopped and deleted countless "games" that have girls losing to dick in the first 100 lines. However, Eternum is one that had me enthralled up to the end of the current content (0.7).
Firstly, as someone who plays around in the studio mode/character creator for other illusion games, I recognize a lot of the assets that were used and I commend Caribdis for the sheer amount of scenes, outfits, and construction that had to be done. Additionally, the animations that the game uses are very, very well done with custom camera work that adds weight to the scenes. On that note, this game has what almost all VNs don't have: PRESENTATION! The creator knows how to make each scene memorable and impactful. This allows the comedy scenes to land, and the serious scenes to have weight, and the spooky scenes to be unnerving.
I think this game has the best cast of characters in any h-game I've played. Sure, they may be the most perfectly imperfect angels that could have ever existed, but I could really care less about that. I love them. It's better for characters in a story to be fantastical than realistic. But for the story and setting that's presented, they all feel believable. Chang is also a fucking bro and the best comic relief character.
The lewd has a very slow burn. You get some nudity and teasing within the first few hours and not much past that. However, I'm fully in support of this choice. The tantalizing nature of it makes the eventual sex scenes so much hotter. Some people complain that all the scenes are vanilla, however with all the depraved acts you can find in all sorts of games on this site, sex between people that are attracted to one another with chemistry that's been built up by prior scenes is a lovely breath of fresh air. That said, if you want a quick fap or just to see the gallery, just do yourself a favor and play a different game.
The story is incredible. Does it use cliches and other pop cultural references? Yeah, it does. But they are used well and create something unique and enjoyable. I don't want to spoil anything about the story, but I was gripped and allowed myself to fully immerse myself. At certain points, the game wants you to take it seriously, and I think it earns those moments. The tone can shift suddenly, but I never felt any whiplash. There's also a lot of foreshadowing that happens throughout and I'm pretty sure I've got a good idea to the underlying mystery, but it doesn't try to be too smart for its own good and trick the player at every turn like some mysteries do.
As someone who was picky with VNs to begin with, this game only made me pickier. Five stars.