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Thoughts on a Task System for T20...

Flynn

SOC-14 1K
Good afternoon, All,

For those of you who have experience with prior versions of Traveller, most systems have had some form of a Universal Task System to describe tasks easily using difficulty ratings. Indeed, one company that produced Traveller supplements, BITS, created a generic task system that translated easily enough to all known published Traveller systems at the time. It was useful for defining tasks so that they could be usable in CT, MT, TNE, T4, and GT editions of Traveller, thus giving their adventures a much more universal appeal.

The PDF for this can be found here:
BITS Generic Task System

I don't know how many of you might feel about the recommendation to create a similar Task System for use in T20. However, if I were to make a recommendation in regards to using them, I'd probably suggest a system that remains somewhat compatible with the BITS generic task system. The skills would remain as they are defined in T20, but the target DCs would change to reflect the general difficulty of undertaking such a task, instead of what's defined as the DC under the skill description.

The following is based on the closest descriptor from the Skills section of the table in the THB. I'm not sure if I like the values, though, because they're not a consistent transition (ten points difference between each of the first three classifications, then five points difference per classification after that.) However, given the nature of the skills system for T20, they probably will work well.

</font><blockquote>code:</font><hr /><pre style="font-size:x-small; font-family: monospace;">Table: Skill DC Based On Difficulty
Task is... Check is...
Easy DC 5
Average DC 15
Difficult DC 25
Formidable DC 30
Staggering DC 35
Impossible DC 40
Hopeless DC 45</pre>[/QUOTE]Looking at the average T20 character of 5th to 9th level, that's 8 to 12 skill ranks for a class skill or 4 to 6 skill ranks for a cross-class skill. In addition, the character has perhaps a +3 ability score modifier (assuming a 16 or 17 in the stat, for a character's stronger stat.) That gives us a range of +11 to +15 on skill checks for class skills (average +13) and +7 to +9 for cross-class skills (average +8). For untrained skills, that's just a +3 on a skill check.

That would give the average character the following minimums rolls: Unskilled 4 (not even Easy tasks, but that's still a failure on a 1 in 20), Cross-class 9 (Easy tasks automatic, fails Average tasks on a six or less), and Class skills 14 (Easy tasks automatic, fails Average tasks only on a natural one.)

The average character would get the following when Taking Ten, or on an average roll of 10 on a d20: Unskilled 13 (Easy tasks are automatic), Cross-class 18 (Average Tasks are automatic), and Class skills 23 (Average Tasks are automatic.)

The average character would get the following when Taking Twenty, or on a natural 20 on a d20: Unskilled 23 (accomplishes Average tasks, but not Difficult ones), Cross-class 28 (accomplishes Difficult tasks but not Formidable ones), and Class skills 33 (accomplishes Formidable tasks but not Staggering tasks.)

Taking Skill Focus as a feat thus opens up the possibility of accomplishing one task difficulty higher for the average character. Extremely focused characters will be rewarded with higher levels of ability, of course, but for the most part, most tasks will fall in the range of Easy to Formidable, with an emphasis on Average and Difficult.

Modifying Task Difficulty Levels
* Rushing a task can increase its difficulty by one level.
* Taking one's time can decrease the difficulty by one level.
* Trying to perform a task without the proper tools, if necessary, increase difficulty by one level.

An alternate to the above Table is to start with a base DC of 10 for Easy tasks, and increase the DC by five for every step up in difficulty. This results in a higher Easy task DC, but all tasks that are Difficult or higher drop in DC by five points from what's listed above. This works well with the Take Ten rule, but deviates from the descriptors printed in the THB, and opens up tasks of one more difficulty level higher.

What are your thoughts?

-Flynn
 
If you want to port that task system to T20, it seems reasonable enough.

What do you hope to gain by doing this, in place of the existing skill/ability check system?

I do wonder whether it's worth breaking compatability with D20 -- the main reason I use T20 is that it makes it easier to get D&D players to try Traveller.
 
Good question, Morte.

In essence, though, it should not change the existing ability score/skill check mechanic used in T20 and other D20 systems. All this suggestion does is offer a method to easily categorize the DCs of the non-opposed skill checks by relating a specific DC to a specific difficulty descriptor.

For example, when you describe the task of climbing a wall as Average, everyone knows the Climb check DC is a 15. If you say it's Difficult to fly the g-carrier in the storm, the pilot knows he has to make a DC 25 (or DC 20, if you go with the second suggestion) on his Piloting check.

This suggested system really comes to the fore when converting adventures written in other versions of Traveller into T20, where tasks are written in a generic format describing tasks by difficulty levels and skills/ability scores used to resolve the task. T20 already has specific ability scores related to skill checks, so that doesn't have to change. This just gives the Referee consistent skill check DCs for task resolution.

Hope this helps clarify,
Flynn
 
Originally posted by Flynn:
This really comes to the fore when converting adventures written in other versions of Traveller into T20, where tasks are written in a generic format similar to this.
OK. It looks pretty handy for converting an adventure written for the BITS task system to say "picking the lock is a T/Mechanical check vs DC20" or similar. I guess you could do it on the fly during play, too. Yep, makes sense to me.

There is a nasty potential for confusion since BITS and T20 use words like "difficult" and "impossible" with different meanings. Consequently, I'd probably give your system a very specific role as a conversion tool for older adventures which are then played with T20, rather than something than to be used in general T20 play.
 
Actually, using the first set of skill check DCs I've provided, you'll find that the DCs listed in the THB and even in T20 Lite are described using these same words. I did so to specifically tie the DC to the published product.

Personally, I'm leaning more and more toward the second option myself, but the first option presented is straight from the books.

Either that, or I'm not sure what you are referring to when you say difficult and impossible...

BTW, besides converting BITS adventures, this would also allow you to convert old MT, TNE and T4 adventures with relative ease, by using the BITS document as an intermediary for translation purposes. This is only in terms of skill checks and task resolution, of course.

One further benefit is that you can get consistent results from applying modifiers based on items like:
Inappropriate location (+1 difficulty)
Exceptionally appropriate location (-1 difficulty)
Lack of proper tools (+1 difficulty)
Lack of spare parts (+1 difficulty)

Just some further suggestions,
Flynn
 
Originally posted by Flynn:
Actually, using the first set of skill check DCs I've provided, you'll find that the DCs listed in the THB and even in T20 Lite are described using these same words. I did so to specifically tie the DC to the published product.
Yes, you've tied them together as well as one can. But somebody who is used to the D20 terms has to be clear that:

- "BITS Easy" = "D20/T20 Very Easy (DC5)"
- "BITS Easy" != "D20/T20 Easy (DC10)"
- "BITS Staggering" = "D20/T20 Challenging (DC35)"
- "BITS Impossibe" = "D20/T20 Incredible (DC40)"
- "BITS Hopeless" = "D20/T20 Nearly Impossible (DC45)"
- "Impossible" is actually possible in BITS, but you can't do the impossible D20/T20 ;)

If you're used to thinking of D20/T20 tasks purely as numeric DCs rather than words, there's no problem. But if you're used to the difficulty level names used in D20/T20's own task system, as some D20 types are, there's potential for confusion.

It's obviously not the end of the world, but I'd want to be clear where BITS meanings stop and T20 meanings start when dealing with D20 players who are used to saying "Challenging" rather than "DC35". Thus my line in the sand...
 
IIRC the BITS Task System is a table mapping the BITS task categories to other Traveller systems. So just add another column to the table with the d20/T20 entries, dropping the Very Easy (0) category from d20, and keep a printout of a modified BITS task chart with the new column handy during play.

Here’re the relevant sections of the latest d20 SRDs:

d20 Modern SRD :

Difficulty (DC) Example (Skill Used)
[EDIT: I deleted the examples; if needed they're in the SRD files]

Very easy (0)
Easy (5)
Average (10)
Tough (15)
Challenging (20)
Formidable (25)
Heroic (30)
Superheroic (35)
Nearly impossible (40)

Revised (3.5) d20 SRD :

Favorable and Unfavorable Conditions
[edit]

The chance of success can be altered in four ways to take into account exceptional circumstances.
1. Give the skill user a +2 circumstance bonus to represent conditions that improve performance, such as having the perfect tool for the job, getting help from another character (see Combining Skill Attempts), or possessing unusually accurate information.
2. Give the skill user a –2 circumstance penalty to represent conditions that hamper performance, such as being forced to use improvised tools or having misleading information.
3. Reduce the DC by 2 to represent circumstances that make the task easier, such as having a friendly audience or doing work that can be subpar.
4. Increase the DC by 2 to represent circumstances that make the task harder, such as having an uncooperative audience or doing work that must be flawless.

Though I would personally change this to changing the task level by one for each complication or advantage.

I am not sure why there's a difference between your list of T20 DCs and d20 DCs. (don't have my THB handy)

All for adding a T20 column to the BITS task system chart as it help ties in T20 to the other versions of Traveller and BITS products.

Casey
 
The differences come straight from the descriptors outlined in the T20 Lite pdf, which, if I recall correctly, are identical to what's printed in the THB. I did modify a few descriptors, as Morte pointed out. While I prefer the simplicity and familiarity of only six or seven descriptors (as I've played several of the past incarnations of Traveller before running T20), I don't see a problem in using the descriptors found in T20 as is.

Thanks for the input, guys,
Flynn
 
Found the list from T20 Lite which looks to be the same as the one in the T20 THB. Seems to be the same as d20 except they added simple and bumped everything else (after renaming some) up by 5.

DIFFICULTY CLASSES

Type DC Example [Examples edited out]
Simple 0
Very Easy 5
Easy 10
Average 15
Hard 20
Difficult 25
Formidable 30
Challenging 35
Incredible 40
Nearly Impossible 45

Also:

DEGREE OF SUCCESS

A character’s degree of success is determined by how much
better than the DC the roll turns out to be.

DC or higher Success
DC+10 or higher Great Success
DC+20 or higher Incredible Success

Which seems too high; granted I've not run a T20 game yet. I just don't see anyone getting 45+. Then again perhaps the intent was to limit incredible success to more normal tasks.

Casey
 
Originally posted by Flynn:
While I prefer the simplicity and familiarity of only six or seven descriptors, I don't see a problem in using the descriptors found in T20 as is.
Mapped out the various DCs and if I had to choose from your original post I'd go with the second option.

Here's a third:

Easy DC 5
Average DC 10
Difficult DC 20
Formidable DC 25
Staggering DC 30
Impossible DC 35
Hopeless DC 40

It stays within the categories of the BITS Task System while also being within the range of d20.

Casey
 
Originally posted by Casey:
Mapped out the various DCs and if I had to choose from your original post I'd go with the second option.

Here's a third:

Easy DC 5
Average DC 10
Difficult DC 20
Formidable DC 25
Staggering DC 30
Impossible DC 35
Hopeless DC 40

It stays within the categories of the BITS Task System while also being within the range of d20.

Casey [/QB]
I agree with you, for my own personal use, with the exception of Easy and Average. I'd bump them up to DC 10 and DC 15 each. With a Take Ten, Easy becomes automatic, and the average character that maxes out a class or cross-class skill with any sort of positive ability score modifier can automatically achieve a success with an Average task using Take Ten within the usual range of character levels encountered in the T20 games I've played in, both tabletop and PBEM.

Hope this helps,
Flynn
 
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