While I love both Classic Traveller and MegaTraveller, the rules to use right now are Mongoose Traveller because they are the most accessible. That said, I steal liberally from Traveller 5th Edition, Traveller 4, and even from Traveller: The New Era and GURPS: Traveller. I have also used Space Opera, Warhammer 40K: Rogue Trader along with it’s modern-day RPG equivalents (Dark Heresy et al). I am also a fan of Fading Suns and Cyberpunk 2020 so bits and pieces of these games have been known to appear – as well as Star Wars (the d6 version) and Justifiers to name two “blasts from the past” that most people have probably forgotten now.
But these House Rules are written and discussed with the Mongoose Traveller rules engine in mind.
Jumping & Astrogation