Welcome To My World - Already giving me Ragnarok Online vibes, which I assume is probably one your main inspirations, I like the use of that tempo switch, but think it could sound a little smoother, sounds a tad bit awkward to me at least but a cool idea.
Pure Imagination - Another solid track! Love the composition and for sure remind of old Korean/Japanese MMOs!
Tomorrow Never Knows - reading the description that definitely hit me in the feels when a friend logs off for eternity differently nailed the vibe!
Overall enjoy this one a lot!