Rather than “deliver this payload,” contracts that have you design things to meet the certain requirements. For example, instead of delivering a certain module to a space station, or putting a specific satellite into orbit, you could have contracts that require you to design payloads to meet these certain criteria. Especially in late-game, these contracts would add lots of fun and challenge to the game. It would also potentially add (some) realism, whereas space companies creating their own payloads to meet needs rather than just playing delivery service (I.E. Starlink). Just food for thought, in my zero knowledge mind this is a rather daunting prospect and I feel that I’ve been suggesting too many things lately.