- "." is For Full-Stop Drum
- "Magic Articles"
- "Two-Gun" Cohen
- 0-point feature
- 1/2D
- 1920s
- 1930s
- 23 Skidoo
- 2HP
- 2 shields
- 2 things
- 360° Vision
- 42 Fedorov Road
- AA
- AI (THS)
- AOC
- AVP
- A British America
- A Cage of Thought
- A Different Take on Imbuements
- A Familiar Path
- A Full Complement
- A Killing Breath
- A Little Bit Psychic
- A Matter of Inches
- A Troubled Land
- A Very Cold War: An Atomic Horror Espionage Adventure For GURPS
- A Westward-Shambling Horde
- Aaron
- Aaron Burr, Jr.
- Abacus
- Abilities Enhancing Skills
- Abilities Only
- Abilities and Exertion
- Ablative
- Ablative DR
- Able to curse disrespectful descendants or bless devoted ones
- Abortifacient
- Abortion
- Absent-Mindedness
- Absolute Direction
- Absolute Timing
- Absorption
- Absorption Variable
- Absorptive Change
- Abzu
- Accelerate Time
- Accelerated Aging
- Accessibility
- Accessory
- Accidental Supers
- Accounting
- Accumulated Wounds
- Accuracy
- Accuracy (ranged weapon)
- Accurate
- Aces
- Achilles’ Heel
- Achilles’ Heel includes fire as well as wood
- Acid-Resistant
- Acid Jet
- Acid Resistant only
- Acid Spider
- Acrobatic Defenses
- Acrobatic Dodge
- Acrobatic Guard
- Acrobatic Stand
- Acrobatics
- Acting
- Action
- Action 1: Heroes
- Action 2: Exploits
- Action 3: Furious Fists
- Action 4: Specialists
- Action 5: Dictionary of Danger
- Action Points
- Action Points and exhausting defense
- Actions After Being Grappled
- Actions After a Grapple
- Active Defense
- Active Defense Rolls
- Active abilities
- Active defence
- Active defenses
- Actual Monthly Pay
- Acute Hearing
- Acute Senses
- Acute Taste and Smell
- Acute Touch
- Acute Vision
- Ada
- Add a Hand
- Addiction
- Addictive Bite
- Adding Utility
- Additional Material (General)
- Adjustable Spells
- Administration
- Administrative Rank
- Adolph Hitler
- Advanced Combat
- Advanced Guige Use
- Advanced Healing System
- Advanced Rules for Fatigue and Recovery
- Advantage
- Advantage (enhancement)
- Adventure
- Adventure Items (Magic Items Catalog)
- Adze
- Aeolus
- Aerial
- Aerie Fighting
- Aesop
- Aethyric Space
- Affect Substantial
- Affected as Dead
- Affected as Living
- Affected by
- Affected by Astral Block, Banish, Pentagram, Repel Spirits, and Turn Spirit
- Affected by Astral Block, Banish, Repel Spirits, and Turn Spirit
- Affected by Astral Block, Repel Spirits, and Turn Spirit
- Affected by Control Zombie, Pentagram, and Turn Zombie
- Affected by Control Zombie and Turn Zombie
- Affected by Magnetism
- Affected by Path of Body, Mind, and Spirit magic
- Affected by Path of Spirit (instead of Body/Mind) magic
- Affected by Pentagram
- Affected by True Faith
- Affected by True Faith and Path of Spirit (instead of Body/Mind) magic
- Affected by True Faith and Path of Undead (instead of Body/Mind) magic
- Affected by True Faith and Pentagram
- Affected by spirit spells and rituals
- Affects Insubstantial
- Affects Insubstantial (Selective)
- Affects Others
- Affects Self
- Affects Substantial
- Affects Substantial (Selective)
- Afflicted Casting
- Affliction
- Affliction (Examples)
- Affliction (advantage)
- Affliction Only
- Affliction range cannot exceed Warp range
- Afflictions Only
- Afflictions and Inanimate Objects
- African Myth
- After The End 1: Wastelanders
- After The End 2: The New World
- After the End
- Aftermath
- Aftermath Costs Fatigue
- Afterworld
- Against All Odds
- Agamemnon
- Agatha Witherspoon
- Age
- Age Control
- Age and Aging
- Age and Beauty
- Age of Industry Undead
- Agent Atkins
- Aggravated Injury
- Aggressive Parry
- Aggressive Parrying Kick
- Aggressive Tail Parry
- Agnosticism
- Agony
- Agronomy
- Aid will never violate god’s/spirit’s tenets
- Aim
- Air Devils Of The South Seas
- Air Elemental, Small
- Air Jet
- Airship World
- Ajihara
- Akatsuki
- Akhenaten
- Alan
- Albany
- Albany-1
- Alberich
- Albert Einstein
- Alberto Santos Dumont
- Albinism
- Alchemical Items
- Alchemy
- Alchemy Elixirs
- Alcohol Tolerance
- Alcoholism
- Aldebaran
- Alertness
- Alex
- Alexander Athanatos
- Alexander XXIII
- Alexander the Great
- Alexius I (Alexius Comnenus)
- Alfheim
- Alfheim (Faerie)
- Alien, Vampire
- All-Out
- All-Out Aim
- All-Out Attack
- All-Out Attack (Long)
- All-Out Attack (Ranged)
- All-Out Change Posture
- All-Out Charge
- All-Out Concentrate
- All-Out Defense
- All-Out Evaluate
- All-Out Move
- All-Out Ready
- All-Out and Committed Attacks When Grappling
- All Things Considered - Kal'El of Krypton
- All but skull
- All or Nothing
- All the Epic Ways
- Allan Pinkerton
- Alliance Terradyne
- Allies
- Alpha
- Alpha (colony)
- Alpha (race)
- Alpha and Omega
- Alphans
- Alpine Landslip
- Altered Time Rate
- Alternate
- Alternate Air War
- Alternate Dungeons
- Alternate Feint
- Alternate Form
- Alternate GURPS
- Alternate Guns Specialties and Techniques
- Alternate History Fantasy
- Alternate Identity
- Alternate Locations
- Alternate Magic Rituals
- Alternate Past
- Alternate Politics
- Alternative
- Alternative Abilities
- Alternative Attacks
- Alternative Disadvantages
- Alternative Enhancements
- Alternative GURPS
- Alternative Ritual Path Magic
- Aluriel
- Always On
- Amalle
- Ambidexterity
- American Myth
- Ammunition of 1950 to 2000
- Ammunition of GURPS Old West
- Ammunition of World War I
- Ammunition of World War II
- Amnesia
- Amphibious
- Amy
- An Alien Way of Thinking
- An Ch'i
- Analyze Magic
- Anaximander
- Ancestor Veneration
- Ancestral Spirit
- Anchor
- Anchored
- Ancient Egypt
- Ancient One
- Ancient and Celestial Verses
- Andalus
- Andrew Hackard
- Androids and Robots (THS)
- And’Rezik
- Angels
- Angst and Abscheu
- Animal Combat
- Animal Empathy
- Animal Friend
- Animal Handling
- Animal Items (Magic Items Catalog)
- Animal Spirit
- Animal Styles (World of Kung-Fu)
- Animals Only
- Animals and Monsters1
- Animating Your Life
- Animation
- Animism
- Annoyed when mortals talk about them
- Annwvyn
- Ansonne: The Black Heart Of Araterre
- Anthropology
- Anti-Talent
- Anti-Targeting
- Antibiotic Resistant Diseases
- Antipsi
- Antoni Ten Monros
- Ants
- Apache pistol
- Ape, Flesh-Eating
- Apes
- Aphra Behn
- Apparition
- Appearance
- Appearance suggests the natural environment of her domain
- Appendix Z: Hall Of Mirrors
- Apportation
- Appreciate Beauty
- Arabian Myth
- Arabian Nights Mars
- Arachne
- Arc of Vision
- Arcadia
- Archaeology
- Archetypal Realm
- Archimedes
- Arching Shot
- Architecture
- Archive-1
- Arcologies (THS)
- Arconix
- Area Effect
- Area Knowledge
- Area Spell Mastery
- Area Spells
- Arendia
- Arendians
- Ares
- Ariane
- Aristotle
- Arm
- Arm DX
- Arm Lock
- Arm Parry
- Arm ST
- Arm Whip
- Armada-1
- Armada-2
- Armada-3
- Armageddon Option
- Armed Grapple
- Armed Grappling
- Armor
- Armor: Not Shining, But Big Enough
- Armor Divisor
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