The games have some connections to the comics. They might use similar characters, storylines, or themes, but they also have their own unique elements to make the gaming experience distinct.
First, you need to be familiar with both The Walking Dead and The Hunger Games. Know the characters, the settings, and the themes. Then, come up with a unique plot that combines elements from both. For instance, you could have a group of survivors from The Walking Dead being thrown into a Hunger Games - like arena where they have to deal with not only each other but also walkers.
Michonne does die in the comics. The circumstances surrounding her death were quite dramatic and had a significant impact on the story's progression. It happened during a major conflict with other characters.