Actions have CONSEQUENCES - TD;DR Honest review so far
I've played many visual novels and my favorite so far is Summertime Saga for an interesting story and a charming art style that's unique to its name. This one, however, might come close second or even surpass it.
Goodbye Eternity is a roller coaster from the start of the game, and I was asking myself questions before what makes this game so unique started to kick in. Most visual novels have a boring plot with a predictable harem gameplay that's often making fun itself in the worst way. This game, however, isn't all just click and win. I found myself actually hesitating to pick choices. And that was before I learned the hard way that your choices have REAL consequences and DO change the story, unlike how most games claim to do. Let it cook and let the plot hook you. You won't put your mouse down.
If you're on the fence, pick the game up when its on sale, and you won't be disappointed with your purchase. Keep up the good work, devs!