I've played many - and i mean many - AVN's and only four have truly impressed me and made me care as deeply as I have about their characters and story. Being A Dik, Once In A Lifetime, Ripple, and now Eternum.
You've outdone yourself again with your consistency, Caribdis, a true master at work. In most AVN's, writing almost always takes a backseat which, in turn, hurts the sex scenes because you're simply not invested in their characters. You've got everything here; a blockbuster story, a clear narrative structure, character development, intimate emotional scenes (which are treated with the utmost respect), punchy dialogue, maturity, humour, and intriguing lore.
Eternum is both serious and campy in the best way possible, just like its spiritual predecessor. And not to mention, the animations, the rendering, the facial expressions, the lighting, and the creativity in the settings are second to none. Polished is the word I'm looking for here.
Wow.