Arbitro GG logo
Arbitro GG
Tabletop AI Rules Assistant
Configure to start
AI Tabletop Rules Assistant

Arbitro

Upload any tabletop rulebook and ask questions. Arbitro's AI searches your documents and gives instant, cited answers — no more page-flipping mid-game. Works with any game system, from D&D 5e and Kill Team to your own homebrew rules.

Drop PDF rulebooks here, or click to browse

Core rules, supplements, campaign books

Optional. Override the default prompt to tune tone, game system, or citation style.

Works with any tabletop game PDF

New to a system? Browse our free rules guides for Warhammer 40K, Kill Team, and D&D 5e.

⚠️ Accuracy notice: Answers are based solely on your uploaded PDFs. PDF text extraction may miss tables or complex formatting. Always verify rules-critical answers against your physical books.
Ready
Kill Team 2024 — 3rd Edition

Kill Team

Comprehensive 2024 core rules are pre-loaded in Arbitro's knowledge base — written in original language, no copyright concerns. Add GW's free official PDFs or your own books for faction and supplement rules.

Core Rules 2024 (3rd Ed.) · Built-in · 300+ rule entries · Always available
☠ Built-in Knowledge Base ▶
📥
Add Official Free PDFs
Games Workshop publishes free downloads including faction datacards, balance updates, and errata. Download them from warhammer-community.com and load them below to extend Arbitro's coverage. Since you're loading your own downloaded files, there's no copyright issue.

Drop faction cards, errata, or supplement PDFs

Optional — core rules are already built-in
📐
Visual Examples — Can I Shoot That?
For precise, interactive diagrams of line of sight, cover, and obscured, canishoot.it is the best visual reference. (It's a Warhammer 40K tool, but the way visibility and obscuring work carries over well to Kill Team.)
🔗 Community Resources — Tac Ops, Missions & Tools ▶

Tac Ops and mission cards are a paid physical product — but the community has built free tools that cover them. Load these alongside Arbitro for a full game setup.

🎯
Critical Ops Card Tool
Select & track Tac Ops, generate missions. Covers the full Approved Ops card pack.
tiltos.github.io
📊
KTDash
Build rosters, browse all factions & operatives, track CP/VP/wounds mid-game.
ktdash.app
📥
GW Free Downloads
Official faction datacards, balance dataslates & errata. Load these PDFs into Arbitro.
warhammer-community.com
🎲
KT Calculator
Exact probability calculator for shooting & fight outcomes. Updated for 2024 edition.
ktcalc.netlify.app
📚
Kill Team Resources List
Community-maintained master list of every Kill Team tool, app, and resource.
github.com/jmegner

Optional. Added on top of Arbitro's default Kill Team behavior (context-only answers, PDF priority, source citations) — it can't override those core rules, only adjust tone, format, or add extra emphasis.

Core rules pre-loaded · No PDFs required
⚠️ Accuracy notice: Core rules were rewritten in original language — not copied directly from GW books. Answers may contain errors. Loading your official PDFs is strongly recommended for faction rules, ploys, and anything rules-critical. Always cross-reference your books for disputes.
Ready
D&D 5e — SRD Rules

D&D 5e

Core D&D 5th Edition rules are pre-loaded from the Systems Reference Document (SRD 5.1), licensed under Creative Commons CC BY 4.0. Covers combat, conditions, spellcasting, classes, and more. Add your own PDFs for subclasses, adventure content, and supplements.

🐉
SRD Rules Pre-Loaded
Covers core combat, all conditions, spellcasting, races, classes, common spells, exploration, and more. Content sourced from the D&D SRD 5.1 (CC BY 4.0). Does not include setting-specific lore, all subclasses, or non-SRD spells.
🐉 Built-in Knowledge Base ▶

Drop adventure modules, supplements, or subclass PDFs

Optional — SRD core rules are already built-in

Optional. Added on top of Arbitro's default D&D 5e behavior (SRD/PDF-first answers, source citations, limited web fallback) — it can't override those core rules, only adjust tone, format, or add extra emphasis.

SRD core rules pre-loaded · No PDFs required
⚠️ Source notice: Rules sourced from the D&D 5e SRD (CC BY 4.0). Does not cover all subclasses, non-SRD spells, or setting-specific content. Load your own PDFs for full coverage.
D&D 5e SRD · Core rules loaded
Warhammer 40,000 — 10th Edition

Warhammer 40K

Comprehensive 10th Edition core rules are pre-loaded in Arbitro's knowledge base — written in original language, no copyright concerns. Add GW's free faction indexes or your own codexes for army rules, detachments, and datasheets.

💀
Core Rules Pre-Loaded
Covers the core game: the command, movement, shooting, charge, and fight phases, objective control, battle-shock, stratagems & CP, terrain & cover, and all the core weapon & unit abilities. Does not include faction detachments, stratagems, enhancements, or unit datasheets — load GW's free faction indexes for those.
💀 Built-in Knowledge Base ▶
📥
Add Official Free PDFs
Games Workshop publishes the full core rules and every faction index for free. Download them from warhammer-community.com and load them below for army rules, detachments, and datasheets. Since you're loading your own downloaded files, there's no copyright issue.

Drop faction indexes, codexes, or dataslate PDFs

Optional — core rules are already built-in
📐
Visual Examples — Can I Shoot That?
For precise, interactive diagrams of line of sight, cover, and obscured, canishoot.it is the best visual reference for working out exactly what's visible.
🔗 Community Resources — Rules, Tactics & Tools ▶

Official free rules plus community-built tools. Download GW's free indexes and load them into Arbitro for full faction coverage.

📥
GW Free Downloads
Official free core rules, faction indexes, points & balance dataslates. Load these PDFs into Arbitro.
warhammer-community.com
📊
Goonhammer
In-depth tactics, faction reviews, and rules explainers for every 40K army.
goonhammer.com
🎲
UnitCrunch
Dice probability calculator for shooting & melee — model any attack sequence.
unitcrunch.com
📋
New Recruit
Free army list builder with full points and validation for 10th edition.
newrecruit.eu

Optional. Added on top of Arbitro's default Warhammer 40K behavior (context-only answers, PDF priority, source citations) — it can't override those core rules, only adjust tone, format, or add extra emphasis.

Core rules pre-loaded · No PDFs required
⚠️ Beta — this tab is still being tested. Core rules were rewritten in original language — not copied directly from GW books. Answers may contain errors. Loading your official faction indexes is strongly recommended for army rules, datasheets, and anything rules-critical. Always cross-reference your books for disputes.
Warhammer 40K · Core rules loaded
Settings

Settings

Appearance, your account, and subscription.

Rules Guides  ·  Terms of Service  ·  Privacy Policy

Forgot password?