Marc Miller's Traveller

Marc Miller's Traveller (1996-1998) was published by Imperium Games after Game Designers' Workshop dissolved and the rights to Traveller reverted to Marc Miller, the creator of the original game. It returned to a heavily modified version of the original rules and was set in the early days of the Third Imperium (Milieu 0). It is often referred to as "T4".

The publication of this edition suffered from notoriously poor writing and editing, which required the subsequent printing of 25 pages worth of errata. Despite that there are a lot of good ideas. With the errata, and avoiding some of the pitfalls of the game, this is a very decent version of Traveller.

T4 was replaced in 1998 by GURPS Traveller and in 2002 by T20 a D20 version of Traveller, and in 2007 by T5