LEGO 6081 King's Mountain Fortress

Released 1990 · 438 pieces · 8 minifigures · Castle · Lion Knights

LEGO King's Mountain Fortress (6081) was released in 1990 in the Castle · Lion Knights line, with 438 pieces and 8 minifigures. By piece count it sits in the top 11% of Castle sets. It was one of 8 Castle sets released that year (see them all). Released in 1990, 36 years ago, well past the two-to-three-year run most LEGO sets get, so it is almost certainly out of production.

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• Estimated value: $155 (modelled from piece count, era, and age, not live market data)

Availability: Likely retired (inferred from its release year, not an official retirement date)

Full details, the price breakdown, and the minifigures included are below. Add it to your collection to track what it's worth.

• 35¢ per piece, about typical for Castle
• 8 minifigures, a lot for one set

Minifigures: Knight (Crusader Lion) - Black Legs, Knight (Breastplate on Red) - Black Legs, Red Plume, Knight (Breastplate on Red) - Blue Legs, Red Feather, Ghost - Glow in the Dark, Brick Built Legs, 3626a, Knight (Scale Mail on Red) - Blue Arms, Black Legs, Black Chin-Guard, Maiden - Blue Skirt, Red Cone Hat

More from 1990

Set data from the Rebrickable database, refreshed daily. Catalog data as of 2026-09-01. Values are this site's estimates, see how they're calculated.

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