In October the tower filled up. Every zombie is now a former resident with a look of their own: a grandmother, a jogger in a tracksuit, a heavyset neighbour who won't go down from a single hit. Many have their own movements: their walk, their scream, their swing.
Hits carry more weight now. Zombies react differently depending on where they are hit, and they fall like real bodies, arms and legs settling on the floor.
Gear got a window of its own: a bag in a clay frame where every item has its place, with tabs for gear, crafting and the diary. The diary fills itself in with locked doors, stairs that were found and whatever is needed to get further.
Books turn up in apartments now and then, and each one teaches the hero something. At the end of the month new weapons arrived too, put together from whatever can be found in the apartments.
Game page: 125th Floor