Dr. Who RPG 2nd Edition - Gameplay Mechanics

Making the Adventure Come Alive: Rules in Motion

The Symphony of Play

Think of gameplay mechanics as the musical notation that helps an orchestra create beautiful music together. The rules aren't restrictions - they're a shared language that helps everyone at the table tell an amazing story. In Doctor Who, the best solutions come from creativity, not combat, so our mechanics emphasize clever thinking over dice rolling.

Imagine you're part of an improv theater group where everyone knows the basic structure but the story emerges organically. The dice add surprise and tension, while the rules ensure everyone gets their moment to shine. It's collaborative storytelling with just enough structure to keep things exciting and fair.

The Doctor Who Difference

Unlike many RPGs where combat is central, Doctor Who RPG puts problem-solving and character interaction at the heart of play. Violence is rarely the answer - understanding, compassion, and brilliance are your primary tools. The mechanics support this by making social encounters and puzzle-solving just as mechanically interesting as any fight scene.

The Core Resolution System: 2d6 + Attribute + Skill

At its heart, every action in the game follows the same simple pattern. It's like having one universal tool that works for everything from picking locks to convincing aliens to stop their invasion.

flowchart TD A[Player Declares Action] --> B[GM Sets Difficulty] B --> C[Player Rolls 2d6] C --> D[Add Relevant Attribute] D --> E[Add Relevant Skill] E --> F[Apply Any Modifiers] F --> G{Total ≥ Difficulty?} G -->|Yes| H[Success!] G -->|No| I[Failure or Complication] H --> J[Describe Success] I --> K[GM Describes Consequences] style H fill:#90EE90 style I fill:#FFB6C1

Difficulty in Context

Automatic (3) - "Of course you can"

Example: A professional mechanic fixing a simple car problem, or the Doctor operating the TARDIS under normal conditions.

Use when: The character is clearly qualified and nothing is working against them.

Easy (7) - "Should be manageable"

Example: Convincing a frightened civilian to trust you, or hacking a basic computer system.

Use when: A competent person should succeed most of the time.

Moderate (11) - "Requires focus"

Example: Disarming a modern security system, or negotiating with a suspicious but not hostile alien.

Use when: It's a proper challenge requiring skill and attention.

Hard (15) - "This is tough"

Example: Reverse-engineering alien technology, or talking down a Dalek from extermination.

Use when: Even experts would find this challenging.

Extreme (19) - "Nearly impossible"

Example: Rewiring a TARDIS console while it's materializing, or convincing a Cyberman to feel emotions.

Use when: This should require Story Points or exceptional circumstances.

Impossible (23) - "Requires genius"

Example: Creating a new type of matter from scratch, or reasoning with a completely alien intelligence.

Use when: Only the truly brilliant with help should even attempt this.

Story Points: The Heart of Drama

Story Points are your "superhero moment" tokens. Think of them like the moments in TV shows where the music swells and the hero does something that makes the audience cheer. They represent those times when ordinary people become extraordinary through determination, insight, or sheer bloody-mindedness.

Ways to Spend Story Points

Add +2 to a Roll

The classic use - turning potential failure into success.

Example: Sarah needs a 15 to hack the alien computer. She rolls 13 (so close!). Spending a Story Point brings it to 15 - just enough. "Wait," she says, "I remember the Doctor mentioning something about recursive algorithms..."

Introduce a Minor Fact

Add something helpful to the scene that wasn't there before.

Example: Trapped in a locked room, James spends a Story Point to notice a ventilation grate just large enough to crawl through. "The building's old," he says, "they had to retrofit the air conditioning."

Gain a Trait for the Scene

Temporarily become exactly what the situation needs.

Example: Facing a crowd of panicking humans, Maya spends a Story Point to gain "Natural Leader" for the scene. Her museum tour experience kicks in - she knows how to handle groups.

Remove a Complication

Make a problem just... go away, usually through clever thinking.

Example: The team is being tracked by alien hunters. Alex spends a Story Point to remember that the local interference from a radio telescope makes their scanning equipment unreliable.

Make a Fantastic Suggestion

Propose a plot twist or solution that the GM incorporates.

Example: The team is puzzled by the alien invasion pattern. Maria spends a Story Point to suggest, "What if they're not invading - what if they're refugees?" The GM grins and nods.

Earning Story Points Back

Story Points refresh through good roleplaying and accepting complications. It's like the dramatic law of equivalent exchange - the more interesting problems you accept, the more power you get to solve them creatively.

Acting on Bad Traits

When your character flaws create interesting complications.

Your "Curious" trait leads you to investigate the obviously dangerous alien artifact, getting the whole team in trouble.

Excellent Roleplaying

When you portray your character brilliantly or make everyone laugh.

You perfectly capture your character's scientific excitement while explaining temporal mechanics to confused 18th century peasants.

Heroic Sacrifice

When you accept personal cost for the greater good.

You stay behind to manually override the dangerous reactor, knowing it means you'll be separated from the team.

Advancing the Plot

When your actions move the story forward in interesting ways.

You're the one who figures out the alien's real motivation, completely changing the team's approach.

Extended Actions: When Time Matters

Some tasks are too complex or time-consuming to resolve with a single roll. Extended actions break complex challenges into manageable chunks, like solving a multi-part puzzle or gradually earning someone's trust.

The Three Types of Extended Actions

Progressive Actions - Building Success

Each success brings you closer to your goal. Like climbing a mountain - every step counts, and you can see your progress.

Example: Repairing the TARDIS Console

Goal: Accumulate 20 success points
Time per roll: 10 minutes
Skills: Technology + Ingenuity

Round 1: Roll 16 (beats Difficulty 11) = 5 success points
Round 2: Roll 14 (beats Difficulty 11) = 3 success points
Round 3: Roll 8 (fails) = 0 points, plus complication
Round 4: Roll 18 (beats Difficulty 13 due to complication) = 7 points
Round 5: Roll 15 (beats Difficulty 11) = 5 points = SUCCESS!

Countdown Actions - Racing the Clock

You have a limited number of attempts before something bad happens. Like defusing a bomb with a timer ticking down.

Example: Convincing the Sontaran to Stand Down

Goal: 3 successes before 5 failures
Each round: Social interaction
Failure cost: Sontaran becomes more aggressive

Round 1: Success ✓ (appealed to warrior honor)
Round 2: Failure ✗ (mentioned cowardice - bad move!)
Round 3: Success ✓ (offered worthy combat elsewhere)
Round 4: Failure ✗ (misunderstood Sontaran culture)
Round 5: Success ✓ (revealed greater threat) = VICTORY!

Competition Actions - Opposing Forces

You're working against an active opponent. Like a chess match where both sides are trying to win.

Example: Cyber-Warfare Against the Daleks

Goal: First to 15 success points wins
Participants: Team's hacker vs. Dalek systems
Skills: Technology vs. automated defenses

Conflict Resolution: More Than Just Fighting

In Doctor Who, most "conflicts" aren't solved with violence. They're intellectual puzzles, moral dilemmas, or social challenges. The game's conflict system handles everything from debates to chases to actual combat with the same elegant framework.

Types of Conflicts

graph LR A[Conflict Begins] --> B{What Type?} B --> C[Physical Combat] B --> D[Social Encounter] B --> E[Mental Challenge] B --> F[Chase Scene] C --> G[Initiative + Tactics] D --> H[Convince + Empathy] E --> I[Ingenuity + Skills] F --> J[Coordination + Awareness] G --> K[Resolution] H --> K I --> K J --> K

Chase Sequences: Running from Daleks

Chases are high-energy sequences where geography and quick thinking matter more than raw speed. They're like action movie sequences where the heroes use the environment creatively.

The Chase Track

Imagine a number line from -10 to +10. Negative numbers mean you're behind (bad), positive numbers mean you're ahead (good), and reaching the extremes means the chase ends.

Chase Actions
  • All-Out Run: Athletics + Strength (move 2 spaces on success)
  • Clever Route: Awareness + Athletics (avoid obstacles)
  • Create Obstacle: Ingenuity + relevant skill (slow pursuers)
  • Environmental Use: Coordination + skill (swing from chandelier!)

Mental Challenges: Battles of the Mind

These represent everything from solving ancient puzzles to resisting psychic attacks. In Doctor Who, the mind is often the most important battlefield.

Puzzles and Mysteries

Classic Doctor Who problem-solving. The GM presents clues, players make deductions.

Example: The Temporal Paradox Lock

Clue 1: The lock shows three different time periods simultaneously
Clue 2: Each period shows the same location at different times
Clue 3: Something important happened at this spot in each era

Solution Process:
Ingenuity + History roll: "Wait, this is Gallifrey - these are all moments of great change!"
Science + Ingenuity roll: "The lock responds to temporal resonance - we need to align all three timelines!"

Psychic Attacks

Mental intrusion, mind control, or telepathic assault. These are battles fought with willpower and self-knowledge.

Example: Resisting Cyberman Conversion Logic

Cyberman Attack: "Emotions are weakness. Logic is strength. You will be upgraded."
Defense: Resolve + Empathy vs. Difficulty 15
Failure Effect: Take mental stress, become more logical and less emotional
Victory Condition: Assert your humanity strongly enough to break the influence

Information Warfare

Hacking, data analysis, or technological problem-solving under pressure.

Example: Breaking Dalek Encryption

Each round represents 1 minute of work. Success gives you pieces of the overall picture. Failure triggers security countermeasures. The tension comes from racing against time while avoiding detection.

Damage and Recovery: More Than Just Hit Points

The Dr. Who RPG treats damage as more than physical injury. It represents exhaustion, stress, despair, and confusion - all the ways adventure can wear down heroes.

Understanding Damage

Physical Damage

Actual injuries from falls, weapons, or environmental hazards.

Examples: Laser burns, broken bones, exhaustion from running
Recovery: Medical attention, rest, proper treatment

Mental Damage

Psychological trauma, confusion, or mental fatigue.

Examples: Seeing horrible things, psychic attacks, impossible paradoxes
Recovery: Talking with friends, solving the underlying problem, time

Social Damage

Reputation loss, relationship strain, or community standing.

Examples: Being branded a troublemaker, losing someone's trust
Recovery: Heroic actions, making amends, proving yourself

The Path to Recovery

Healing in Doctor Who is rarely just about medical treatment. It's about solving the underlying problem and helping people (including yourself) move forward.

Sarah's Recovery Story

The Problem: Sarah took mental damage from witnessing the destruction of an entire civilization. She's withdrawn and questioning whether their adventures are worth the cost.

The Solution: Not just rest, but seeing the survivors they saved rebuilding their lives. Talking with the Doctor about the weight of their choices. Gradually understanding that witnessing tragedy doesn't diminish you - it makes you more determined to prevent it.

Game Mechanics: Mental damage heals through positive story developments and character interaction, not just time passing.

Environmental Storytelling: Making the Setting a Character

In Doctor Who, the environment is never just background. Whether it's the TARDIS humming with temporal energy or an alien world with three suns, the setting actively participates in the story.

Environmental Aspects

Helpful Aspects

Elements that characters can use to their advantage

Examples:
  • "Convenient Ventilation System" - +2 to Stealth when moving unseen
  • "Ancient Knowledge Repository" - +2 to History or Science rolls
  • "Temporal Instability" - Allows time-travel related solutions

Hostile Aspects

Environmental challenges that create complications

Examples:
  • "Radiation Leak" - Ongoing damage unless protected
  • "Shifting Gravity" - Coordination rolls needed for movement
  • "Psychic Interference" - Mental actions are more difficult

Interactive Aspects

Elements that respond to character actions

Examples:
  • "Living Ship" - Can be reasoned with or befriended
  • "Quantum Computer" - Provides different answers based on how you ask
  • "Temporal Echo" - Shows different outcomes based on choices

Putting It All Together: Complete Scene Examples

Scene One: The Dalek Archives

Setup

The team needs to access the Dalek Imperial Archive to find information about a temporal weapon. The archive is guarded by automated defenses and contains psychic traps designed to overwhelm non-Dalek minds.

Scene Breakdown

Phase 1: Getting Inside (Physical Challenge)

Challenge: Bypass Dalek security systems
Skills: Technology + Ingenuity
Difficulty: 15 (these are Daleks!)
Consequences: Failure triggers alarms and defense systems

Sarah (Technology 4, Ingenuity 5) rolls 2d6+9 and gets 16. Success! She finds a maintenance access that the Daleks overlooked because they never consider the possibility of retreat.

Phase 2: Navigating the Archive (Mental Challenge)

Challenge: Resist psychic overload while searching
Skills: Resolve + Knowledge (History)
Difficulty: Escalating (11, then 13, then 15)
Environmental: "Psychic Nightmare" aspect - mental attacks on failure

James (Resolve 4, History 3) starts strong but the second roll fails. The GM describes visions of Dalek victories flooding his mind. He spends a Story Point to remember his grandmother's stories about surviving the Blitz - "I've heard worse than this before."

Phase 3: The Discovery (Social Challenge)

Challenge: The archive contains a living Dalek consciousness
Skills: Convince + Empathy (yes, even with a Dalek)
Difficulty: 19 (nearly impossible)
Twist: This Dalek has been isolated for centuries and is questioning its programming

The Doctor approaches this as a damaged mind, not a monster. Spending Story Points to introduce the fact that isolation can change anyone, even a Dalek. The conversation becomes about loneliness and the need for purpose beyond destruction.

Practice Activities

Activity One: Difficulty Calibration

For each scenario, determine the appropriate difficulty number and explain your reasoning:

  • A professional chef cooking a familiar recipe under normal conditions
  • A pilot landing a damaged plane in a storm
  • A child convincing their parent to let them stay up late
  • A scientist explaining quantum physics to a medieval peasant
  • Anyone trying to reason with a Cyberman

Activity Two: Story Point Scenarios

For each situation, describe how a player might spend Story Points creatively:

  • Trapped in a sealed room with rising water
  • Facing a hostile alien species that doesn't speak any human language
  • Needing to repair complex alien technology with primitive tools
  • Trying to convince time-displaced historical figures to work together
  • Racing to prevent a war between two alien species

Activity Three: Extended Action Design

Design an extended action for each scenario, including goal, time frame, skills needed, and what happens on failure:

  • Gaining the trust of a paranoid conspiracy theorist who has crucial information
  • Reverse-engineering a broken alien device with limited tools
  • Evacuating a city before a natural disaster strikes
  • Solving an ancient puzzle that guards a temporal gateway

Activity Four: Conflict Resolution Practice

Choose one scenario and walk through a complete conflict resolution:

  • Debating with a alien ambassador about trade agreements
  • A chase scene through a crowded marketplace
  • Resisting mind control from a psychic alien
  • Hacking into a computer system while security hunts for you

Include: initial setup, participant abilities, round-by-round actions, and final resolution.

For Game Masters: Making It Flow

The mechanics are just tools - the real art is in using them to support great storytelling. Here are the key principles for keeping the game moving and engaging.

Say Yes, or...

The default response to player ideas should be "yes" or "yes, but..." or "yes, and..." Only say "no" when it would break the game or story.

Fail Forward

Failure should advance the story, not stop it. Instead of "you fail to pick the lock," try "you pick the lock, but the alarm goes off."

Let Characters Shine

Create moments where each character's unique abilities are the solution. The scientist needs science problems, the leader needs leadership challenges.

Embrace the Absurd

Doctor Who is wonderfully ridiculous. Giant spiders, robot dogs, and defeating armies with a bag of jelly babies are all perfectly valid.

The Rhythm of Adventure

Good gameplay flows like a well-written TV episode - there are quiet character moments, building tension, dramatic reveals, and satisfying resolutions. The mechanics support this rhythm by providing structure without overwhelming the narrative.

Remember, the goal isn't to win or lose - it's to tell an amazing story together. The dice add surprise and tension, but the real magic happens when everyone at the table contributes to creating something greater than any of them could imagine alone.

In the end, the mechanics fade into the background, and what remains is the story of unlikely heroes using their wits, compassion, and determination to make the universe a better place - one adventure at a time.