This is a concept I've created for the Sculk Creeper! This variant will spawn in the Deep Dark (maybe Ancient Cities too?) and just like the Warden, it cannot see the player! The only way for it to detect you is vibrations. The Warden as the advantage of smell as well, but the Sculk Creeper wasn't too fortunate. It will interact with vibrations in the same way the Warden does to seek the player out, and once the Sculk Creeper has locked it's target, it will pursue. If it gets close enough to the player it will attempt to explode like a normal creeper. This explosion, while not doing block damage, can still be dangerous, as it sends out a shockwave that damages nearby entities and alerts Sculk Sensors, Shriekers, and other Sculk Creepers. Feedback is appreciated! (Note these are not renders, but screenshots from Blockbench.)