I had the idea of an xcom like (TB tactics) set during russian civil war, with artillery train and self made armored trucks, with both a whole political/territory management aspect for getting missions & equipement, and some rpg elements for your forces.
Also works for a necromunda inspired game (you could even make a f2p multi game with this, people would pay a lot to improve their gang appearance, especially if they're getting attached to the characters thanks to the rpg part)
another idea was a fps/rpg, set in a not too distant future where climate, covid and encomy problems coalesce in a giant clusterfuck in europe with total breakdown of social order. We'd use a a big city like berlin or paris as the set, there would be various factions fighting there, and basically you'd be the usual super cyber-soldier roaming around there. The twist is despite your super powers, you just can't accomplish shit without the backing of a faction, and the biggest impact you can have is making/unmaking alliances and war between them, by giving them access to information about strategic resources or manipulating power relations inside the faction itself, just going in the battlefield alone fighting is fun but ultimately pointless (infinitte enemies and artillery fucking you up).
Prolly too big a scope. Its just that I like fps rpg and tried to shoehorn some of my ideas in it.
FPS/rpg alternative ; use a chivalry like melee combat and make it about being some robinhood
or go full magicka in fps form, I think its dynamic magic system really offer a lot of creativityPost too long. Click here to view the full text.