your own castle?
 

i was thinking of something like might and magic, where you have you're own castle
you have to get certain items to build certain buildings for hiring units
also possible upgrades for units and customize them
maybe a blacksmith to upgrade items too like sharpen an item for +1 attack
could use for example
the ghost castle at the first island as a base for building

just ideas

the game is fun... make a new game in the editor???