If you are looking for a specific character "piece" for the brothel, you must capture opponents, imprison them, and train their skills to match the specific gender, race, and rarity requirements listed in the brothel's assignments. Official Resources & Troubleshooting
If you are stuck on a specific "piece" or puzzle in the game, here are the most common solutions based on player guides: Common Progression Blocks LustHunter-0.6.4-pc.zip
If the "piece" refers to a mechanical puzzle involving statues, you must rotate them to line them up with the boxes located near each statue to open nearby doors. If you are looking for a specific character
Community-driven guides and help can often be found on the game's Itch.io discussion boards where players share specific solutions for puzzle keys and quest items. you must capture opponents