1.players who don't log in for a month(1 week 2? whatever works) there names disappear from the rankings till they log in, it would make the rankings more accurate and intense as active players will be closer to attack range of each other.
2.a way to deconstruct rooms, giving back the fields used and maybe all/some/none of the gold used. i don't know about everyone else but like when i have creatures i don't need i just send them out on suicide attacks and well i made a mistake or 2 when constructing room so it would be nice to get those fields back and try again.
which leads to a possible 3rd
3.creatures that no longer have there needs met have a chance to leave, or 1 leaves every 24, 12, or 4 hours (dev choice)

