KingSoultan

You could go the Resident Evil and or Prototype route and have a few bio weapons running around at various strength levels and have the Mc and the girls evolve powers like Wesker or become potential bio weapons like Alex Mercer. You could also have the world develop Conduit powers from Infamous and give the Mc the power to copy other conduit powers like Delsin Rowe from Infamous Second Son. It would give the Mc gradual strength progression having to find, copy and train powers from other survivors or zombies with powers as the story progresses. Either way it would give the world a pretty good strength cap towards the end of the story without having too many people running around with city or continental busting strength. If you plan on just staying in the HOTD world and not hopping around the multiverse and if you did it would still have a good base for whatever world could be next. Anyway whichever route you choose to go down I’m very excited to keep reading, this is currently one of my favourite stories to read at the moment and I can’t wait to see where it goes next. Thanks for your hard work and keep up the great story!