The Sims 4 Collectibles: Space Rocks
Space rocks can only be found in space. Traveling to space requires you to purchase a Rocketship in buy mode, and have your Sims build it from scratch. Once you have a working rocketship, your Sims will need to explore space and complete text adventures. Collecting all space rocks requires plenty of trips to space.
❗ Completing the Space Rock Collection awards you with an Orchid Plant. Check your mailbox!
❗ Upgrading the Rocketship will help complete your space rock collection faster.