The game should incorporate realistic thermal management features, such as heat buildup mechanics, insulation, and cooling systems. I would say "Cryogenic systems" This would require players to design and implement effective thermal protection solutions to prevent overheating and damage to their rockets. By adding these features, the game would become more challenging and realistic, forcing players to balance performance, weight, and thermal management to achieve success. This would enhance the overall gameplay experience and make rocket design and launch more immersive and engaging.