spiderstpo-1.0.4.jar is a release file of the Minecraft mod Spiders 1.999 for Forge, made for Minecraft 1.12.2. It was published on April 11, 2025 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Spiders 1.999 mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.