Originally posted by Leffe-(SWE):

Workbenches do prevent mobs from spawn within their inner building area. But they won't prevent enemies comming to you from further away. Everytime you work with the hammer, axe, pickaxe or even fighting for that matter will lure other mobs comming to you from far away.

The workbenches don't always do that. Maybe the OP has too large an area covered with them and walled off. I think that's my problem. I checked and triple checked the radius of my workbenches where the event mobs keep spawning and they are fully within the radius of every workbench. I took over a swath of land larger than the mini map can normally show, though. I always assumed that was the problem. I own more land than the event has a radius to spawn them in when it goes off

I think there can be some mechanism in the game that you have to be in the area of the workbenches them selfs to work as they should. But in general several workbenches works great from mobs not to spawn inside a spiked wall.
They do not block spawners though. It's like more like I have to build wooden floorpanels into a greydwarf nest to strengthen it from not spawning. But it still ain't completely blocking a spawner.

Originally posted by Semirotta:

Originally posted by Leffe-(SWE):

place out more workbenches

I've needed to mention this already too many times;
Crafting workbenches or such does not work to prevent enemies spawning. This has been tested so often and many times over and over, they do not work.
The best way to prevent enemies from spawning in your "town" is to build enough larger buildings.
Standing torches has absolutely no change to the enemy spawnings so do not count on those.

and yet they're in the list of things that generate player base area

Workbenches do prevent mobs from spawn within their inner building area. But they won't prevent enemies comming to you from further away. Everytime you work with the hammer, axe, pickaxe or even fighting for that matter will lure other mobs comming to you from far away.

Originally posted by Leffe-(SWE):

place out more workbenches

I've needed to mention this already too many times;
Crafting workbenches or such does not work to prevent enemies spawning. This has been tested so often and many times over and over, they do not work.
The best way to prevent enemies from spawning in your "town" is to build enough larger buildings.
Standing torches has absolutely no change to the enemy spawnings so do not count on those.

Originally posted by Christopher Crayven:

Check the wiki for stuff that prevents spawns:
https://valheim.fandom.com/wiki/Spawning_mechanics

Thanks! I am wondering how I did not encounter this when I was googling :)

Check the wiki for stuff that prevents spawns:
https://valheim.fandom.com/wiki/Spawning_mechanics

standing torches also seem to block spawning, whether they're lit or not.

Originally posted by DarkworldHero:

standing torches also seem to block spawning, whether they're lit or not.

Thanks!

But can anyone confirm that?

There are always some tip everytime you start and load the game. That includs even workbenches reducing or prevents mobs from spawning. Never seen standing torches in those tips and neither have I noticed something like that.
I was hoping myself early in my game that lit standing torches would scare away greydwarfs but that only gave them a reason to smashed them. :)

torches do nothing to stop spawns..this i can confirm

place out more workbenches

crafting stations' radius prevents spawns

Thanks a lot brothers!

This is quite an important mechanic for the game to not explain at all really.