Experimental Technical Readout: RetroTech samples a number of new designs that have begun to emerge from secondary manufacturers across the war-torn Inner Sphere. Representing modern manufacturing with older techniques, most of the designs featured in this book incorporate a mix of modern technologies and older design standards--many rushed into service for their desperate consumers. Statistics and Record Sheets are included for 13 new experimental BattleMechs, vehicles, and aerospace units presented in this book, ready for play in advanced BattleTech games.