You uploaded this around the time when I started working on my version for this challenge, and I think I might have consioucly or unconsciously been inspired a bit by your song structure :)
You build up a really nice atmosphere and use interesting chord progressions. Also I think the different parts of the song fit well with the journey theme and the development of the hero's story. The combination of acoustic and electronic sounds works well in your track, and the mixing and mastering sound good to me. It's great that you use tempo changes, sometimes they sound a bit too linear for my taste, but that also fits with the more electronic nature of the track.
My main criticism with this track is that it's not very memorable in my opinion. The track mostly consists of rhythmic elements that drive more or less, depending on the desired mood, and arpeggios that do little more than follow the chord progressions. Now all this sounds really nice, but to me it also sounds like an accompaniment to something that is never introduced. For background music in a game, this might work, though I think even for that it would be nice to have some more memorable elements, even if you don't want to draw too much attention to the music. There is a melody right at the beginning that is also repeated later, but I think for that to be singable and memorable it would have to have less interval jumps and reuse more small elements of itself.
However, all in all, the different parts of the track could probably very well be used as background music in a game and the way that you put all these different atmospheres in one track is quite impressive!