Traveller Store CotI Features New Posts Mark Forums Read Register

Go Back > Citizens of the Imperium > General Traveller Discussions > The Lone Star

The Lone Star Meet, greet and socialize with your fellow Travellers in the Lone Star Lounge. Random Topics.

Thread Tools Display Modes
Old May 11th, 2016, 12:22 PM
robject's Avatar
robject robject is offline
Join Date: Mar 2002
Posts: 13,926
Gallery : 9
Visit robject's Blog
robject has disabled reputation
Default Traveller Theme 2: OTU

This discussion is to clearly spell out the rule/setting combination known as the OTU. I'll keep this OP updated as the model gets refined.

The OTU is a large-ship, traffic-agnostic universe whose setting spans the rules mechanics of Classic Traveller, MegaTraveller, Traveller 4, Mongoose Traveller, and Traveller5.

Its Library Data and Alien Data is perhaps the easiest to describe, being relatively unchanged since its consolidation into MegaTraveller's Imperial Encyclopedia. The setting information in the CT Alien Modules (plus MgT's Zhodani alien module) remains the best source of information on the major sophonts. The Traveller Adventure, the "Adventures" proper, and the Double Adventures are similarly useful - as are MT adventures such as Knightfall (for those enduring the Rebellion years), JTAS, and Challenge magazine content. The latest starcharts are freely available from

Some special-purpose books are also great supplemental material for the OTU: for example, the Sword Worlds supplement from GURPS. Other GURPS supplements work from within the OTU as well (Interstellar Wars), although some make assumptions that need not be made to be OTU (for example, Far Trader assumes a high-volume-traffic universe). Another canonical supplement is the Milieu Zero Sourcebook, a publication from the T4 rules which nevertheless is rules-agnostic and part of the OTU. T4's Pocket Empires also has some setting information in sidebars which describes some of the early conflicts in the Core sector.

The OTU's setting is the most ported of settings between rulesets. Thus the salient features of the OTU tend to be supported everywhere. Note that different rulesets tend to subtly change the way equipment works. That means we need companion discussions like those Wil has done which compare the rules mechanics between versions.

This also means that the OTU also has the largest number of variations, from ruleset to ruleset.
Imperiallines magazine
My Helpful Stuff for Traveller5
IMTU tc+ t5++ 3i(+) au ls+ / OTU 44% an+ dt+ ge- j- jf+ n- pi+ pp+ tr+ tv- uwp+ xb+
Tools Link

Last edited by robject; May 12th, 2016 at 02:53 PM..
Reply With Quote
Old May 11th, 2016, 01:37 PM
mike wightman's Avatar
mike wightman mike wightman is offline
Join Date: Jun 2003
Location: Newcastle
Posts: 16,614
Gallery : 0
mike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizenmike wightman Respected Citizen

The problem with this is the OTU suffered from ruleset-itis.

The ruleset redefined enough key technologies and setting elements that the OTU tied to a particular ruleset is sometimes at considerable odds to the other versions.

proto-Traveller OTU - the first version
post HG post library data suplements OTU - this changed the setting dramatically from the proto-days and is probably the default version that others (GT, HT, MgT) have tried to reimage for their rules but keep the setting
MT OTU a continuation of the above but the changes to key setting tropes (jump fuel percentage, amount of fuel used per jump) and some of the strange decisions about how to generate core sector worlds produces a different feel. You can play the earlier versions of the setting with the MT rules, and you can play the MT setting with different rules systems, but there are differing tech tropes that just bug me to hades and back.
And then the elephant in the room
TNE OTU - a deliberate attempt to reboot the rules, the setting, the technology. They did a brilliant job with the technology - never before or since has their been such a well integrated technology book. How much you like the setting and the rules is down to personal bias (I like the setting but not the rules).
T4 OTU- a failed attempt to reconcile the technology of TNE with the previous versions (FF&S2 is a great idea but how it made it to print in that form is beyond me - Mongoose would have republished a fixed version and given everyone that asked a free copy), a rules system that you either like or loath, but some excellent supporting books and quite a good setting once the hardback version of Milieu 0 hi the shelves.
T5 OTU - still waiting to see it.
The beauty of CT LBB1-3 is that the ref is free to make such decisions for themselves.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Traveller Theme 1: Proto-Traveller robject The Lone Star 227 April 15th, 2020 10:34 PM
Canon 4. Variations on a Theme robject The Lone Star 46 November 3rd, 2017 12:54 PM
Best Science Fiction Theme? Supplement Four TAS Opinion Polls 28 December 13th, 2013 07:54 AM
Social Standing as Campaign Theme Bob Weaver Classic Traveller 39 February 11th, 2013 05:08 AM

This website and its contents are copyright ©2010- Far Future Enterprises. All rights reserved. Traveller is a registered trademark of Far Future Enterprises .
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright (c) 2010-2013, Far Future Enterprises. All Rights Reserved.