Far Future: Boss Biome

[SheeleMara]

 This obviously would be an idea for the far future, probably after actual game release, but what about a limited in size biome dedicated to boss fights/toughest challenge for those who are brave enough? Like the entire biome would be covered in a green irradiated fog that detracts one health per minute (counter-able with the regeneration skill), the topsoil is zombie plant ooze that cuts your normal movement in half, vehicles also take damage over time. In addition to a few "boss" zombies that can only be found in this biome (like say a Zombie T-Rex), other unique Zombie foes can be found here, like wandering hordes could be composed of herds of zombie cows, screamers could be the normal zombies you finding wandering about. 

 An endgame objective could be building a base within this biome and surviving a horde night there. 

 

[smokingpaper]

I guess you could say the wasteland is the "boss biome". Not exactly the way as you have in mind but it is the endgame biome you go to. 
Go there at night, zombies keep coming at you.

 

[Blake_]

 This obviously would be an idea for the far future, probably after actual game release, but what about a limited in size biome dedicated to boss fights/toughest challenge for those who are brave enough? Like the entire biome would be covered in a green irradiated fog that detracts one health per minute (counter-able with the regeneration skill), the topsoil is zombie plant ooze that cuts your normal movement in half, vehicles also take damage over time. In addition to a few "boss" zombies that can only be found in this biome (like say a Zombie T-Rex), other unique Zombie foes can be found here, like wandering hordes could be composed of herds of zombie cows, screamers could be the normal zombies you finding wandering about. 

 An endgame objective could be building a base within this biome and surviving a horde night there. 

I would love a small subiome with a big boss . An arena could also be kind of cool.

 

[Maharin]

 You don't necessarily need a new biome for bosses as they could just be within special POIs.  And since POIs can be HUGE it shouldn't be a big deal making them hard to get to.