Inside Your World mod notes

• Drops you into a world where a black concrete block materializes near each non-spectator player every six seconds; the block acts as a spawn anchor for a new foe.
• Each block immediately produces a Shadow Stalker: a fast, invulnerable, humanoid-shaped monster that relentlessly targets players standing under open sky.
• Stalkers ignore players who are under cover; once you step into the open they regain aggro and pursue with high speed and melee damage.
• Blocks are placed on nearby solid ground (avoiding fluids) and stalkers appear one block above the placement, ready to chase.
• Translation: the entity shows up in-game as “Shadow Stalker.”

Known notes and tips

• Stalkers cannot be harmed or destroyed; survival depends on outrunning or hiding beneath a roof.
• Blocks accumulate over time; clean them up manually if desired.
• Requires Fabric Loader + Fabric API for Minecraft 1.21.1 on the server. Clients need the mod to see and interact with the custom entity normally.