Spiders in LEGO Fortnite are common hostile creatures. You usually find them in the Grasslands and inside Caves.
If you want silk fast, sweep open Grasslands at ground level. Then check cave entrances and deeper cave paths for more spawns.

Spiders do not appear at one exact marker on the map. You need to search by biome and terrain shape instead of looking for a fixed nest.
You may also find spider variants in harsher regions, including the Dry Valley and the frostlands biome. These regions have similar hostile critters in different forms.
Where To Look First

Start in the safest, most open areas and then move into enclosed spaces. Spiders naturally spawn in Grasslands and Caves, so those are your first two targets.
Grasslands Surface Spawns
Grasslands are the easiest place to begin. You can cover a lot of ground fast.
Walk through rolling hills, rock patches, and tree lines. Spiders often appear while you move through open terrain.
Cave Spawn Areas
Caves are a strong second stop because enemy spawns are packed closer together. Check cave entrances first.
Move inward and watch for spiders near narrow paths and rocky turns.
Dry Valley Spider Locations
The Dry Valley does not spawn the standard spider as its main critter. Still, you may find sand-based spider variants around rocky edges and open desert paths.
Frostlands Spider Locations
In the frostlands biome, you are more likely to meet frost-themed hostile critters than the basic spider. Scan icy slopes, cave mouths, and sheltered spots where enemies can gather.
How Spider Variants Differ

Spider types change by biome, which affects where you should search and what danger you should expect. Standard spiders are simple and common, while sand and frost versions fit their own regions.
Standard Spider Behavior
A standard spider roams until it spots a target. It chases and attacks.
Each hit deals 0.5 damage, and spiders drop one Silk when you defeat them.
Sand Spider Habitat
Sand spiders live in dry, desert-style spaces. Search the Dry Valley, especially near exposed rock, dunes, and open ground.
Frost Spider Habitat
Frost spiders fit cold regions and appear in the chillier parts of the world. If you explore near snow, ice, or frozen cave areas, keep your camera moving because these enemies blend into the landscape fast.
Best Routes For Fast Spider Farming

Build a loop instead of wandering at random for fast farming. Short, repeatable routes help you reset spawns and collect Silk.
Some players get better results by choosing best map seeds that make travel and enemy hunting easier.
Early-Game Silk Runs
Start near your base and make small circles through nearby Grasslands. This keeps travel time low and gives you a steady chance to meet spiders.
Biome Hopping For More Encounters
If one biome feels empty, move to another instead of waiting. Rotate between Grasslands, cave entrances, and nearby dry or icy edges for more chances to find fresh spawns.
When Best Map Seeds Can Help
A good seed makes your route cleaner, with easier access to Grasslands and Caves. Spider hunting is faster when your world layout lets you move between spawn zones without long hikes.
How To Search Safely

Spider hunting is simple, but tight spaces and surprise attacks can wear you down. Bring the right gear, watch corners in caves, and keep enough space to run if you get swarmed.
What To Bring Before Exploring
Carry basic weapons, healing items, and enough food or supplies to keep moving. A torch or light source also helps inside caves, where spiders are easier to miss in the dark.
How To Spot Threats In Tight Spaces
Look for movement near rocks, cave bends, and shadowed edges. Spiders often come at you from low ground or from just outside your view.
Turn slowly when entering small rooms or narrow tunnels.
Simple Fight And Escape Tips
Keep your distance when you can. Back up after each attack.
If a fight turns messy, run toward open ground or a cave entrance. This lets you reset the battle and avoid taking repeated hits.