George Carlin famously said âa house is just a pile of stuff with a cover on it.â At its core, Lego Fortnite is the same. Epicâs new collab with Lego has become an absolute phenom since it launched December 7, seeing a daily peak of around 2 million concurrent players. Like all good sandbox survival games, itâs driven by the need to gather, store, and organize piles of stuff. But not all stuff is created equal. Some stuff, like wood and granite, is readily available. Other stuff is harder to find. This guide is concerned with the latter, giving you insight on where to find the hard-to-find materials like knotroot, flexwood, and more.
But First, The Biomes
Understanding where to find stuff in Lego Fortnite means recognizing the different biomes on the map. There are four biomes to explore: Grasslands, Shores, Dry Valley, Frostlands. Grasslands are where youâll begin the game. Youâll find lush open prairies, friendly temperatures, plentiful resources and weak foes. Shores are beachy areas found along bodies of water. Theyâre not as stuffed with resources, but a good place to find brutes and brute scales.
Dry Valley is your desert biome. Temperature is a factor here, and you canât explore for very long unless youâve crafted Snowberry Shakes or Cool-Headed Charms to help you beat the heat. Dry Valley biomes can be hard to find, too. The best method is to get up high, either on nearby cliffs or by building a ton of stairs, and look around for big brown patches of desert. Because every map is built from a different seed, every map will be different, so thereâs no fixed location for the biomes. You just have to keep exploring!
Frostlands are, as youâd expect, the snowy biomes. Like Dry Valley you need to prepare for extreme temperatures. You need to craft some Spicy Burgers or Inner Fire Charms to withstand the cold, holding a torch wonât help you here. Youâre also not likely to be within walking distance of a Frostland biome either. These are typically found on the extreme edges of the map, and the easiest way to scout and access them is to rig up a hot air balloon.
Now that you know a bit about what the world of Lego Fortnite looks like, hereâs a rundown of where to find some of its most sought-after materials.
Where To Find Fertilizer in Lego Fortnite

If I can invoke Carlin once again, sometimes shit is stuff. In Lego Fortnite, fertilizer is a key component in the early game for getting your farms going. Find it on the ground anywhere animals congregate. Hold the gather button down as you walk around and itâll pick stuff up automatically.
Where To Find Knotroot in Lego Fortnite

Knotroot is one of the easiest hard things to find. Let me explain. Itâs one of the earliest resources youâll encounter that isnât just laying on the ground. But itâs located in the Grasslands, so it isnât far from where you start. Just explore until you find a cave, and youâll encounter these twisted vine clusters on the walls within.
Where To Find Marble in Lego Fortnite

Marble is scattered throughout the caves in the Grasslands Biome. Youâll likely have to backtrack to get it once you find it the first time, because it requires an upgraded pickaxe to harvest. You can only make one of those with knotroot.
Where To Find Flexwood in Lego Fortnite

Flexwood are the trees of the desert. Once you locate a Dry Valley biome, Flexwood will probably be the first resource you encounter. Who among us can resist chopping down a giant cactus? Make sure youâve upgraded your axe before you go, though.
Where To Find Rough Amber and Cut Amber in Lego Fortnite

You can find Rough Amber gleaming in small clusters that dot the cliffs and crags of Dry Valley. After you harvest, turn it into cut amber by using a gem cutter. Youâll also need an upgraded pickaxe to harvest it.
Where To Find Obsidian in Lego Fortnite

While youâre Lawrence of Arabia-ing around the Dry Valley biome, make sure to do some cave-diving too. Youâll find obsidian throughout the cave systems. Itâs got a purplish shimmer thatâs easy to spot by torchlight.
Where To Find Brightcore in Lego Fortnite

Another subterranean gem (literally), Brightcore can be harvested from caves in the Dry Valley biome. Its bright orange glow is hard to miss.
Where To Find Copper in Lego Fortnite

Copper is found in Dry Valley caves, although not as readily as Obsidian and Brightcore. Like Brightcore it has a yellow/orange glow to it, but the telltale teal of copper patina runs in its veins.
Where To Find Sand Claw in Lego Fortnite

Youâll need to go on the hunt for this resource. Sand claws are obtained by defeating sand wolves which, naturally, are found in the sand. Youâll encounter them in both the Dry Valley and Shores biomes.
Where To Find Malachite in Lego Fortnite

This rare resource is easy to spot, but tough to find. Its luminous emerald shine stands out on the white windswept peaks of the Frostland biome. Getting there will be the big challenge, making this a late game resource for players.