Spider Critter Collection Guide
Forest and Cave night route — the web-spinning rare critter that drops Silk Thread and anchors the Arachnid collection tier.
Spider
Level 3Rare120gSpring/SummerLocation
Forest/Cave
Time
Night
Season
Spring/Summer
What Is Spider in Heartopia?
Spider is a level 3 rare critter found in the Forest and Cave biomes during Spring and Summer nights. It is one of the most sought-after critters in Heartopia because of its dual value: the 120g base sell price and the highly coveted Silk Thread material drop. Catching your first Spider triggers a brief cutscene with Weaver Lira, who introduces the “Spinner’s Legacy” side quest chain and unlocks the Weaver workbench where Silk Thread can be refined into premium crafting cloth.
Spider anchors the Arachnid collection tier in the critter journal. Completing this tier requires Spider, the rarer Cave Spider sub-variant, and the seasonal Orb Weaver that appears only during the Summer Solstice event. Donating your first Spider to the journal rewards a permanent +10 percent movement speed buff in dark environments — incredibly useful for navigating Cave corridors and night Forest paths where visibility is already limited.
Spiders behave differently from most critters in Heartopia. Rather than wandering along set patrol routes, they build web anchors on surfaces and remain stationary until disturbed. Approaching within five tiles triggers their flee behavior, so stealth is critical. The Soft Step enchantment on boots reduces your detection radius by half, and combining it with the iron net’s extended reach makes Spider farming far more consistent.
The Forest and Cave spawn pools overlap during warm-season nights, but experienced players tend to focus on the Cave for two reasons: the enclosed spawn area concentrates spiders into predictable chamber positions, and Cave spiders have a slightly higher Silk Thread drop rate of around 50 percent compared to the Forest’s 35 percent. If you are farming purely for gold rather than materials, the Forest route is faster since you can chain spider catches with Firefly and Moth spawns along the same path.
How to Catch Spider Efficiently
- Enter the Forest or Cave after 20:00 during Spring or Summer. Equip an iron net or higher and boots with Soft Step enchantment if available.
- In the Forest, follow the path toward the river crossing and look for web clusters on tree trunks — each cluster marks a spider anchor point within three tiles.
- In the Cave, enter the first two chambers and scan ceiling threads. Spiders hang from single threads and drop to eye level when idle.
- Approach slowly from behind. Spiders face their web anchor, so circling to the rear avoids triggering their five-tile detection radius.
- Swing your net in a wide arc once within range. A successful catch plays a silk-snapping sound effect and deposits the spider directly into your inventory along with any Silk Thread drop.
Seasonal Forest and Cave Locations
- Spring night: Spiders begin appearing in both Forest and first Cave chamber; spawn density is moderate
- Summer night: Peak spawn season with highest density; Orb Weaver sub-variant appears during the Solstice event week
- Fall night: Only the deepest Cave third chamber retains a trickle spawn; expect roughly one per night
- Winter: No Spider spawns in any biome; transition to Beetle and indoor critter farming
Priority: unlock the Weaver workbench during Spring Week 1, then dedicate Summer nights to Cave farming for maximum Silk Thread yield before Fall shuts down most spawn points.
Parallel Night Collections
Catfish
Level 3 - Night
Eel
Level 3 - Night
Moth
Level 2 - Night
Related Pages
- Critter collection index — full journal map.
- Moth guide — another night Forest critter for parallel farming.
- Firefly guide — pair with Spider on warm-season night runs.
- Catfish guide — night fishing alternative when critter stamina runs low.
- Full fishing index for cross-category progress.
Frequently Asked Questions
Where do I find Spider in Heartopia?
Spider spawns in the Forest and Cave biomes exclusively at night, between 20:00 and 04:00 during Spring and Summer. In the Forest, look for web clusters on tree trunks and low branches near the river crossing. In the Cave, spiders hang from ceiling threads in the first two chambers. Cave spawns are slightly more reliable because the enclosed space keeps the spawn pool smaller, so spiders appear more frequently per cycle.
What net level do I need for Spider?
Critter level 3. You need at least an iron net to catch Spider reliably. Spiders are fast and will scurry away if you miss the first swing, triggering a 30-second cooldown before they respawn nearby. The steel net upgrade adds a slow effect on near-misses, giving you a second chance within the same encounter window. Starter and copper nets will break webs but cannot capture the spider itself.
Does weather affect Spider spawns?
Weather has a notable impact on Spider behavior. Overcast and foggy nights increase Spider spawn density by roughly 30 percent because reduced visibility triggers their hunting instinct. Clear moonlit nights keep spawn rates at baseline. Rain completely removes outdoor Forest spiders but does not affect Cave spawns, making the Cave the all-weather farming location for dedicated Spider hunters.
How much does Spider sell for?
Spider sells for 120g each at the critter vendor. Beyond raw gold, Spider drops Silk Thread at a 40 percent rate, which is a key crafting ingredient for the Weaver workbench recipes. A single Silk Thread sells for 80g on its own, but crafting it into Spider Silk Cloth (3 threads) and selling the cloth yields 350g total — nearly triple the raw thread value. Farming spiders is one of the most profitable night routes in the game.
Can I catch Spider outside of Spring and Summer?
Spider has an extremely low spawn rate in Fall within the deepest Cave chambers only, roughly one per in-game night. Winter removes Spider spawns entirely from both Forest and Cave. If you need Spider for collection completion outside the main seasons, focus on the Cave third chamber during early Fall nights. Stock up during Spring and Summer when the spawn rates are high and both biomes are active.
Noah focuses on collection completionism and NPC relationship optimization. He verifies fish spawn tables, critter locations, bird schedules, and NPC gift preferences through systematic in-game testing across multiple save files.
- 100% collection completion across fish, critters, and birds
- Maintains NPC gift database with verified preference data
- Cross-references community reports against controlled test runs