The Morpheus Fusion HT-96 is a 96-condition, incomplete factorial protein crystallization screen specifically designed to uncover novel crystallization space using a range of low-molecular weight ligands. Its mild chemistry, based on PEG-precipitant mixes with no extreme pH, makes it highly suitable for samples with challenging stability, including macromolecular complexes and membrane proteins, as well as for soaking crystals with drug compounds. This comprehensive screen features 19 unique additive mixes, promoting initial crystal formation and enhancing lattice stability. All conditions are cryoprotected, reducing crystal stress and simplifying subsequent handling. The Morpheus Fusion HT-96 is engineered for easy optimization of 'hits', streamlining the path to high-quality crystals. Its advanced formulation accelerates the identification of optimal growth conditions, proving indispensable for researchers aiming to achieve reliable and reproducible structural data.