Blindfolds you, so you can't see anything except for your character
Documentation
Blindfold
This plugin allows hiding everything except the player character when used
in combination with a GPU plugin such as RuneLite's GPU plugin or 117 HD.
Similar Plugins
117 HD
GPU renderer with a suite of graphical enhancements
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Nearly infinite view distance and minor graphics improvements
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Applies a fog of war effect outside of the entity render distance, in both the world and on the minimap.