Learn how to roll and assign Mongoose Traveller character characteristics, understand physical and mental attributes, and decide which scores matter most during Traveller character creation.
Mongoose Traveller Character Creation: Rolling Characteristics
Welcome to Part 1 of The Ultimate Guide to Playing Mongoose Traveller RPG.
In this article, we start at the beginning of Mongoose Traveller character creation: rolling your characteristics and deciding where to place your highest and lowest scores.
Grab your copy of the Traveller Core Rulebook Update 2022, or try the lower-cost Traveller Explorer's Edition, and follow along as we build a Traveller character step by step.
Rolling Characteristics
When creating a new Traveller character, the first thing you usually do is roll your characteristics.
Roll two six-sided dice and add them together. Do this six times, once for each characteristic. After you have six results, assign those numbers to your characteristics in the order that best fits your character concept.
The standard Traveller characteristics are:
Strength (STR): Physical power, lifting ability, and raw muscle. High Strength can help with heavy labor, melee attacks, carrying gear, and physical challenges.
Dexterity (DEX): Agility, coordination, reflexes, balance, aim, and fine motor control. High Dexterity helps with many combat, piloting, stealth, and precision tasks.
Endurance (END): Stamina, toughness, and the ability to withstand hardship. Endurance is especially important because it is usually the first characteristic damaged in combat.
Intellect (INT): Cleverness, perception, problem-solving, creativity, and resourcefulness. High Intellect helps when your character needs to improvise, investigate, analyze, or create solutions under pressure.
Education (EDU): Formal knowledge, training, academic background, and technical learning. High Education is useful for knowledge skills, professional expertise, and many technical or scientific tasks.
Social Standing (SOC): Status, reputation, social class, and influence. Depending on the campaign, SOC may represent noble rank, social access, charm, or the ability to navigate powerful institutions.
Physical and Mental Characteristics
Traveller characteristics can be grouped into two broad categories:
- Physical characteristics: Strength, Dexterity, and Endurance
- Mental and social characteristics: Intellect, Education, and Social Standing
This split matters because different parts of the game lean on different traits. Combat and survival often depend on physical characteristics. Investigation, technical work, career qualification, and problem-solving often depend on mental or educational characteristics.
Psionic Characters
If your Referee allows psionics, your character may also have a PSI characteristic.
Psionics are not always available in every Traveller campaign. Some groups treat psionic powers as rare, hidden, illegal, experimental, or tied to specific setting assumptions. Ask your Referee before planning a psionic character.
Characteristic Maximums
Characteristic values vary by species and campaign rules. Some species may have higher or lower maximums than humans.
For normal humans, characteristics usually range from 2 to 12 at the start, with 15 often treated as a normal human maximum.
Some characters may later increase characteristics through training, events, medical treatment, or cybernetic augmentation, depending on the rules and campaign.
Which Characteristics Are Most Important?
The best place to put your highest rolls depends on the character you want to play.
A Marine, Scout, Rogue, Scholar, Merchant, and Noble may all value different characteristics. Still, a few scores tend to matter often during play.
Strength, Dexterity, and Endurance
Strength, Dexterity, and Endurance are important because they also represent how much punishment your character can take.
In Traveller, damage is applied directly to physical characteristics. Your character does not have a separate hit point total in the same way many fantasy RPGs do.
Endurance is especially important because damage is usually applied to END first. A strong Endurance score helps protect your other physical characteristics from being reduced early in a fight.
Once damage begins reducing STR or DEX, your character may become weaker, slower, less accurate, or less effective in dangerous situations. A high END score helps delay that downward spiral.
Intellect and Education
Intellect and Education are also very useful because Traveller characters often deal with technology, computers, starships, medicine, science, investigation, navigation, trade, engineering, and problem-solving.
Education is commonly used with knowledge-based skills. It represents what your character has learned through training, study, career experience, and formal education.
Intellect is often useful when your character needs to think quickly, notice patterns, improvise, invent, investigate, or solve new problems.
For many Traveller characters, EDU and INT are just as important as combat ability.
Characteristic Modifiers
Characteristic modifiers are bonuses or penalties added to rolls during play.
The Traveller rulebook includes a chart for converting characteristic scores into modifiers. These modifiers matter because they affect your odds of success on tasks related to that characteristic.
Be sure to write your characteristic modifiers clearly on your character sheet. You will use them often.
The Most Useful Characteristics for New Players
For many beginner Traveller characters, the two safest places to put high scores are:
END - Helps your character survive combat, injuries, exhaustion, and dangerous situations.
EDU - Helps with knowledge skills, technical tasks, background skills, career options, and long-term character competence.
That does not mean every character should prioritize END and EDU. A sniper may care more about DEX. A noble diplomat may care more about SOC. A scientist may want high INT and EDU. A marine may want strong physical characteristics.
But when in doubt, END keeps you alive and EDU helps you do useful things.
Simple Beginner Advice
Here is a practical way to assign your first Traveller character’s scores:
- Put one of your highest rolls in the characteristic most important to your character concept.
- Put another high roll in END or EDU.
- Avoid making END too low unless you are comfortable with a fragile character.
- Do not treat SOC as useless; it can matter a lot in noble, diplomatic, political, military, or patron-heavy campaigns.
- Ask your Referee which characteristics are likely to matter most in the campaign they plan to run.
Where to Go Next
After you roll and assign your characteristics, the next step is choosing your background skills.
Continue with the next article in this character creation series:
Mongoose Traveller Character Creation: Background Skills
You can also return to the full series hub here:
The Ultimate Guide to Playing Mongoose Traveller RPG
Keep Building Your Traveller Toolkit
If this guide helped you understand Traveller characteristics, Beyond the Horizon: The Ultimate Guide to Playing Mongoose Traveller expands on the ideas in this article series with more practical guidance for players and referees.
New to Traveller? You may also want to download the free Introduction to Traveller PDF for a quick beginner-friendly overview.
Running or preparing a Traveller campaign? Explore the CyborgPrime AI Tools for Game Masters for campaign prep, worldbuilding, and referee support.
Your Turn. What Do You Do?
Which characteristics would you put your highest numbers in? Which ones would you put your lowest values in?
Please share your thoughts in the Comments section below.
If you found this article helpful, please give it a good rating at the top. Thanks!
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