In case you don't know yet, Bundle of Holding has a few SciFi bundles going on..

Traveller 2024 + Traveller sectors

The Traveller 2024 update includes: Traveller Core Rules 2022, MGT Companion Update 2024, MGT Adventure Class Ships, MGT Small Craft Catalogue, MGT Robot Handbook.

Traveller Sectors has two tiers.. Core Collection: MGT Sector Construction Guide, MGT World Builder's Handbook, The Third Imperium, MGT: 3 Core Adventures- Frontier Collection: MGT Sector Construction Guide, MGT World Builder's Handbook, The Third Imperium, MGT: 3 Core Adventures.

GURPS 3E Core + Transhuman Space

GURPS 3E Core includes: GURPS Basic Set 3E Revised, GURPS Classic Compendium I + II-

Transhuman Space Classic also has two tiers: Earth-lunar collection: Transhuman Space Classic, Transhuman Space: Personnel Files, 4 near-Earth Transhuman supplements, Singapore Sling. Beyond collection: Spacecraft of the Solar System, 3 Transhuman sourcebooks, 2 Transhuman Space adventures, Transhuman Space: Changing Times.