This design is a classic "Bait-and-Switch" trap. It is aesthetically pleasing ("Lovely") and functional, designed to drop a victim into a pit using a hidden piston mechanism. The "30" in your request refers to a , which is the sweet spot for killing players without them disconnecting or landing in water accidentally.
Lovely Craft Piston Trap (LCPT) is an indie parody game focusing on piston-based mechanics and achievement unlocking. Comprehensive updates, character mechanics, and specific achievements like "No-clip" and "Funny Number" are detailed in the developer's Itch.io devlog LCPT 0.2.999 is released! - Lovely Craft by Crime lovely craft piston trap 30 full
Switch to the Sheep character to gather 3 wool, and use the Cow character for milk. : 30-block deep drop This design is a classic
Note: Lovely Craft may have custom redstone timing. Adjust repeater ticks to 2-3 for best results. Note: Lovely Craft may have custom redstone timing