Make lockpicking and forcing doors take time whether it works or not.
Add message indicating failure to pick a lock.
Refactor lockpicking code to not repeat itself so much.
Add varable strength requirements for moving different furniture types.
Make the rest of the esged weapons ueable as cutting tools.
Refactor crowbar code to repeat itself less.
Factor mechancs skill in to lockpicking and door forcing.
Make picking a lock unlock the door instead of also opening it.
Give lockpicking and prying open alarmed doors have a chance of setting off alarms.
Replace the city mongroup with static spawns of zombies scattered about.
Make spawns dencer at the center of towns.
Centralize the monster despawn logic in a single method.
Make staticly spawned monsters generate a new spawn at their current location when despawning instead of warping back to their origin.
Make zombie population density fall off exponentially with distance from city centers.
Give zombie groups a major bump.
Add some comments to new option flags.
Make static or dynamic zombie spawning an option.