I have run into a "good" problem while working on a game, I missed thinking about a theme. And now that I have an idea for it, I kinda don't know what I can do with it now.
Maybe I should write about the game idea first: The game is a co-op game in a post apocalyptic world, you and your friends are a group of rookie soldiers with the orders to flush out the enemy of a certain territory. How you are going to do that is completely up to you.
Now with the theme I'd like to play around with: "You are expendable".
I want them to feel less and less valuable, nobody cares if you die as the game progresses.
After the first tutorial, before the gamers are sent into the world the first time, they get the typical captain's pep talk ("We are counting on you, soldiers"). After that, nobody from their faction will talk to them with a human voice.
You don't see any npc soldiers fighting at your side, if you want any supplies, you have to pay for them. And they are sent to you via artillary strike. In the middle of the game, you find more and more groups of dead soldiers that probably had the same orders.
I want to give them the mood that, in this world, everybody wants to kill them, they have nothing but each other.
So my main problem is, how can I use that feeling for the ending? The only thing I can imagine is to put in a plot twist, their commanders are actually the bad guys and they are going rogue. But what else can I do with it?
Or do you have any other suggestions?