I've made a story called "Bloodlust: A Hunger Games Novel" which is in the same universe as the Hunger Games franchise, but none of the same characters, and is based purely on the arena and strategy behind it.
It takes the point of view from six different tributes, all from different alliances capturing their personality and perspective, and for some, their death.
It's not completed, but I've got at least 4 chapters completed. Would anyone wanna read it?
EDIT- http://my.w.tt/UiNb/ScNyp923xz Here is the link to the story, it's got short chapters so it won't take long to read
(Warning: Has themes of violence, death and rape, except the rape isn't written in the story yet)