Spiders Mod FAQ

Watch a spider walk up a vertical wall or across a ceiling — with the mod active, its body rotates to stay flush with the surface instead of staying flat and horizontal. If spiders still look like they're sliding sideways up walls, the mod isn't loaded or another mod is overriding spider rendering.

Yes, both regular spiders and cave spiders use the realistic wall and ceiling movement. Cave spiders are the ones you'll notice most in mineshafts, since they can now drop onto you from the ceiling at angles that vanilla spiders never could.

That's the mod working as intended — spiders can traverse ceilings and reposition vertically, so they can approach from directly above instead of only from walls. Treat every ceiling in a spider area as a possible ambush point and light it up or block it.

Spiders can climb most full vertical surfaces, so a plain fence or wall alone won't stop them. Use overhangs, ceilings, or a lip at the top of your walls so there's nothing for them to grab onto and pull themselves over.

Combine solid walls with an overhanging roof or a top lip, and keep interiors well lit so spiders don't spawn inside. Since they can cling to ceilings, also seal or light any open ceiling gaps and avoid leaving climbable pillars right next to your walls.

No — it focuses on movement and AI, not combat stats or loot. Spiders hit and drop the same things they always did; the difference is where they can go and how they approach you.

It can — spiders that can navigate obstacles and climb more freely may escape designs that relied on them getting stuck. Test your farm after installing and add ceilings, funnel walls, or drop chutes so climbers can't crawl back out.

Use the mod's climbing against them: build smooth vertical walls they'll climb, then guide them toward a drop or collection point at the top. Since they cling to ceilings too, cap the trap so they can't crawl along the roof and out of the kill zone.

It generally works alongside most mods, but other mods that also rewrite spider AI or rendering can conflict and cause the old flat-wall look or odd movement. If spiders behave strangely, test with only this mod plus your other spider-related mods to isolate the conflict.

The extra movement and AI calculations add some load, which is most noticeable in spawner rooms or farms with many spiders at once. If you see stuttering there, reduce the number of spiders active in one area rather than blaming the mod outright.