The Elder Scrolls V: Skyrim Special Edition

To clear a dungeon you have to usually kill all the inhabitants, when you kill the final inhabitant a victorious sound will play and hovering over the location icon on the map will now display "cleared" just under the name of the location. Spawning directly into a location makes your marker on the map not display properly until you leave to the open world which is why I often use exterior teleports to arrive at the location. While doing this I had a location that kept crashing my game, and another where no enemies spawned even though I believe they should have been there, for this reason I added a few extra locations (bandit camps) just to be safe at the very bottom of the list.

To use commands press the " ~ " button which is just below the escape key. Commands are not case sensitive so you don't have to put caps when you see caps in them below.

Useful commands:

God mode, very useful: tgm

Turn off clipping (allows you to fly and go through walls and doors): tcl

Increase game speed (makes you and everything else go quicker but I found it kept resetting and gave up using it, the 10 can be anywhere from 1 to 10, I often used 4): sgtm 10

Kill all non-essential NPC's in the cell your character is in : killall

Give yourself a decent sword: player.additem 000F8318 1

Animal Dens (kill the animals/creatures within):

coc BleakcoastCave01
coc BonechillPassageExterior01
coc BronzeWaterCaveExterior
coc BroodCavernExterior
coc ClearspringTarnExterior01
coc ColdRockPassExterior01
coc CrystaldriftCaveExterior
coc DarkshadeExterior01
coc GraywinterWatch01
coc GreenSpringHollowExterior01
coc GreywaterGrottoExterior01
coc HoneystrandGroveExterior
coc PinefrostTowerExterior01
coc PinepeakCavern01
coc RefugeesRestExterior01
coc SteepfallBurrow01

Forsworn Camps (kill all forsworn in the camp and a couple locations have an attached cave with more forsworn to kill):

coc BrucasLeapRedoubt01
coc DragonBridgeOverlookExterior01
coc DruadachRedoubt01
coc HagRockRedoubt01
coc SerpentsBluffRedoubt01

Giant Camps (kill the giants and/or mammoths at the locations, once again a couple locations have an attached cave):

coc BleakwindBasinExterior01
coc BlizzardRestExterior
coc BrokenLimbCamp
coc CradlecrushRockExterior
coc GuldunRockExterior01
coc RedRoadPassExterior
coc SecundasKissExterior
coc SleepingTreeCampExterior01
coc SteamcragCampExterior01
coc StonehillBluffExterior01
coc TalkingStoneCampExterior01
coc TumbleArchPassExterior

Spriggan Groves (kill the varying types of spriggans and animals at the location or in the cave at the location):

coc AutumnshadeClearingExterior
coc ClearpinePondExterior01
coc EvergreenGroveExterior
coc MossMotherCavernExterior01
coc PeaksShadeTowerExterior
coc RoadsideRuinsExterior
coc ShadowgreenCavernExterior
coc ShroudedGroveExterior

Hagraven Nests (kill hags, hagravens, and other enemies inside or at location):

coc BleakwindBluffExterior
coc GlenmorilCovenExterior
coc CradleStoneTowerExterior01
coc HagsEnd01
coc RavenscarHollow01

Warlock Lairs (kill the magic users and other enemies at or in each location):

coc BoulderfallCaveExterior01
coc FalkreathWatchtowerExterior
coc HobsFallCave01
coc SouthfringeSanctumExterior

Extra locations just in case:

coc GallowsRockExterior
coc HaltedStreamCampExterior01
coc BrokenHelmHollowExterior01
coc BilegulchMineExterior01
coc EmbershardMineExterior01

This achievement should come through time. As you go to different locations, eliminating all hostiles counts as clearing. This can be caves, giant camps, ruins, etc.

What to look for would be on the World Map; hovering your cursor over a location and seeing if it has a note below the name saying "Cleared".

Also, defeating the final enemy at a site will cause a soft crescendo of music. It's a nice auditory sign to let you know the dungeon is cleared.

Do this 50 times and the achievement is yours.

This can be done much quicker than the above guide.

ModPCMiscStat "Dungeons Cleared" 49
coc BleakcoastCave01
killall

Achievement should now unlock.

Note: If you cleared dungeons previously, change the amount so the total of your cleared dungeons + command equals 49.