(Spoiler warning): After surviving 50 cycles and reaching the destination planet, is there any more story after that if I chose to keep playing? If not maybe we can get a some more victory text after surviving 50 cycles. Suggestion 1: Add a victory screen with some story like, "After a long journey, you and the crew of the Helix Ark have arrived at your destination. With hard work and a bit of luck, it may provide nourishment and protection for your people."
Suggestion 2: Also what do the Relays do exactly? They help you reach your destination faster, right? Maybe the game can calculate how long it took you to reach the destination and use that as your score. The shorter the travel time, the better the score. This will make the Relay a more attractive upgrade.