Very moody track. Could use more variety in the sound, changes in tempo are great but a bit too uniformed in length. Some artists like to make slight differences in the space between each note, to look as if played in person. Sounds like EDM to me, Dark EDM. Variety of instruments, please use them. I like the ending past 1:40 the most, as it is a large change from the previous sections of the song. Overall, great track, 5/5 from me.

A villain in one of those 2D games with a style similar to OFF mayhaps?

I think a weird art style would go well with the song, and I dig it. My affinity with these sorts of things is probably why I dont enjoy a lot of games nowadays. Id love to see someone try to use this though!