I see people have mentioned things about combat and I have some advice for that. Since this is a RP and not a Tabletop, I don't want to make this too complicated, but if it sounds too complicated, I don't mind helping. In my Tabletop, I have a more complex version of this, but basically:

When it comes to combat, you have a winner and a loser. Almost always, both will end up injured and in the games, one will probably end up dead. I suggest during these fights that the two players PM each other and work on a collaborative post that depicts the fight from start to end. Before the fight, the winner can already be determined by rolls. The scale would go like this:

1-7: Injured
8-12: No injuries
13-20: Death

This is just a brief mock-up, but it can always be tweaked. Before a fight, the GM should be PM'd so that the roll can be done, or if you want to trust the players, they can do the roll on their own. You would roll 1-20 for each player. So in a sense, both players could end the fight injured, or dead, or no consequences at all. That way, it's not 100% guaranteed that a person is going to die during a fight, but there is a large chance for it.

EDIT: There is also a site where you can have the rolls listed publicly so everyone knows that there is no bias. I would suggest this if you are playing as a tribute, or if you choose to let the players roll for themselves. Let me look it up and I'll post it here.