well, sure, but there isnt another way? I like to spend most of my time building, so moving from spot to spot wouldn't be practical

If you stay inside an interior area (crypt for example), raids will never trigger. But that means you have to spend all eternity indoors. I tested this one time when I was hosting a server and had to keep my Viking safe (had to stay logged on). Not sure if it works 100%.

Short answer; no, there is no way to stop them from happening unless you use a mod

If your playing the vanilla game the only thing you can do is build good defenses. Trenchs and raised Earth walls (using the hoe) are easiest and IMHO best options. Since they are terraint elements the attacking mobs can't detroy them like wood fences or stone walls.

The 'NoRaid' mod
https://valheim.thunderstore.io/package/MystroDev/NoRaid/

Also, drop a bunch of workbenches around the area. Usually If the mobs can't get a direct path to you they go after the benches first before going after your walls. Think of them as cheap ablative armor for your base :)

Build a moat around your home base. Erect perimeter walls. Place workbenches around your base to prevent spawns in your base.

Quicksand Riggs made a nice analysis video of enemy range.
https://youtu.be/GlB0kJ_OHug

For mods, look into Azumatt's "Better Wards" on Thunderstore. i really recommend finishing the game a few times without using mods, but I understand we all have different styles and needs.

Good hunting!

if you just want to build theres dev commands of "ghost" so they will ignore you..despite being right next to you... but dont get used to it... it will make you think they are friendly toward you for the non building part of the game

I got lucky with my map. Good sized island with a sheltered river area for my boat. Clear cut the forest, removed the rocks, smoothed out a hilltop and built on top then the surrounding area is covered in workbenches. Is it ugly? Yeah, kinda. 0 attacks on my island but I do have to check 1 side as the benches can still be broke by something but never seen what. Benched up the small sliver island to create a barrier of sorts from the main landmass. Did this to a spot I put a home on to just have somewhere nice and to a Plains island for 100s of wheat.

I build a single small well protected base with just comfort, food, beverages, spare equipment, and only the structures required to keep my gear in good repair. Generally it only has small, immediate usage, storage and only a handful of portals (emergency, current work site, farm, and one to ta portal hub for everything else.

Because it is small, I can easily fit the entire thing on a small island, elevated pillars, buried beneath Elder altar, or surrounded by moat and/or earthen wall. Most of the other facilities; farm/ranch, metal manufacturing, secondary portal hub, warehouse, port, etc; either have no more than two 'base structures', or are places I don't spend much time at and wouldn't be too put off if major repairs became necessary. Those auxiliary places only have the defenses necessary to keep the locals at bay.

Many, or even most, of the auxiliary sites are former bases or outposts that have been repurposed.

If you want to spend time building, just take your big boi character to a new world and don't kill the bosses on it.

Only waves of boar and neck will spawn which means harmless food-resupply.
You can completely ignore the waves with some basic wood walls.

A earth (hoe) wall and a trench have kept everything out of my base except drakes. You need some stone but also get a bunch from digging the trench. Make sure you enclose enough area for farming or other unless you do it remote.

Originally posted by Aoji Cresini Terminus Roxos:

well, sure, but there isnt another way? I like to spend most of my time building, so moving from spot to spot wouldn't be practical

Earthen walls + ditches + spawn-blocking buildings (i.e. workbench) will keep all the pesky land-based mobs outside. Alternatively, to enable most raids, you need 3 "base" structures in close proximity to each other, so if you space them out enough the only raids that might happen are the ones that are specific to the player location.

Also, I think there's (unsupported) mods and devcommands that can stop raids.

Dig a steep-sided ditch around the base, one that you have to sprint-jump to get out of. You can leave a small air gap for the bridge or use a single beam to walk across. This will keep out anything that walks, but not flying things. Leave extra space around the edges because trolls throw boulders. Remember to put workbenches or campfires around the base to prevent spawns inside.

Bonus: easy troll hide if you shoot them from across the ditch.

Try aggroing the locals and let them test it for you to make sure you didn't miss a spot where they can climb.

Has anyone tried building a troll pit within the vicinity of their base? Instead of keeping sure you've covered all the spots within your base with work benches, you intentionally choose where the raid will spawn by leaving one spot - the pit - open for the spawn.

Is there a flaw in this logic? It's probably not full proof, and certainly not for flying things, but could it work as an alternative to keeping things out?

Originally posted by loppantorkel:

Has anyone tried building a troll pit within the vicinity of their base? Instead of keeping sure you've covered all the spots within your base with work benches, you intentionally choose where the raid will spawn by leaving one spot - the pit - open for the spawn.

Is there a flaw in this logic? It's probably not full proof, and certainly not for flying things, but could it work as an alternative to keeping things out?

not entirely flawed. I did this on an island base. i had complete no-spawn coverage on the island and a tiny islet just outside of range where the raids would spawn. not a troll pit but the principal is the same.
the problem with doing this on land is that you can't fully guarantee that the mobs will spawn in the hole. the water around my island example is what accomplishes this. plus, all the base items you spread around to try to get them to spawn in the hole have now made a bigger area that raids can happen.

Raids don't attack your base... they target you.
Don't spend too much time at base... get out, explore, keep moving.

well, sure, but there isnt another way? I like to spend most of my time building, so moving from spot to spot wouldn't be practical