#RPGaDay August 18, 2017
Don’t even have to think…it’s Traveller. Started in 1979 with the 1977 Little Black Book boxed edition. I somehow missed the MegaTraveller and Traveller: New Era times. I came back to Traveller in the much maligned (but personally respected Traveller 4). These days I use a combination of Classic Traveller, Cepheus Engine, and Traveller 5.