1 or 4 seem the most interesting in terms of plot deviation and overall potential. If you're gonna write them, I'll put myself forward as help. Gotta love some AU goodness.

 

4 is definitely the one i would like to see the most. The rest would be harder to write without more material from SIU, but they are all interesting plot deviations.

 

I wrote a response to one of the challenges apparently; and I just found it recently. It seems like I wrote it ages ago, so it certainly isn't the best work I've ever done, but it definitely is fanfiction about Tower of God.

It's not good or bad, simply somewhere in between. Here you go, if you care to read it:

The King's Game.

EDIT: It's also not even finished or started; just like a quarter or halfway through chapter 1.