First of all, thank you for your story I really enjoyed it. Amnesia is, after all this time, still on my to-play list despite having been in my library, and my intense enjoyment of bits and pieces of the soundtrack.

But I've read many such stories by people in regards to 7 days. And lived many such stories myself.
And no other game besides Egosoft's X series has ever done that for me.
We are blessed, in this day and age, with an abundance of games made with loving attention to detail by people passionate about their art. And some of those artists are writers who provide the "big story" that shapes whole games. Other artists are level designers, who makes us look at the outside of a POI and THINK we know what to expect, and then guide us through an experience that can not only enable our own plot twists and turns, but also reveal the backstory about how the POI came to be in the state we now find it. Character artists populate this world with zombies, and traders, and soon bandits! Each character lovingly crafted with blood, sweat, and tears to get every animation and texture just right. Environment artists make the wastelands, deserts, forests, etc come alive with detail. AI programmers whose art we see only in hindsight, too caught up in the moment of fear to think about the algorithms that make it happen, motivate us to craft stories of our own by forcing us out of any position that might be comfortable.
And so many others! I don't want to leave anyone out. And almost every game has some, most, or all of these components, yet only two games (counting the entire x series as one game for this purpose) have ever given me so many high quality memorable gameplay stories. I can't put my finger on what makes the magic happen, or whether it is the same in those two cases, but it is such a precious thing.
Thanks, Fun Pimps!
Edit: Actually, KSP has this particular bit of magic, too.