Warhammer 40,000 Core Rule Book: What New Players Need

Quick answer

If you are starting Warhammer 40,000, the Core Rule Book is the reference you will keep returning to for the five-phase battle round, datasheets, and battlefield setup. It is worth buying when you want the full rules in one place rather than relying on memory or scattered summaries; if you only play Kill Team, you can skip it and use the Kill Team: Core Book instead.

What the Core Rule Book actually contains

The 88-page softcover covers the essentials in three practical blocks: basic rules concepts such as reading datasheets and moving and attacking with miniatures; the battle round, which explains the five phases of a turn in order (Command, Movement, Shooting, Charge, and Fight); and battlefield and tactics, which shows how to set up terrain and objectives and use tactical tools. Because it is a rulebook rather than a codex, it explains how the game works, not the unique rules for every faction.

Do you need it if you already own a starter set?

Starter sets often include a condensed rules booklet, and that is enough for your first few games. The Core Rule Book becomes useful once you want one consistent reference for the full phase sequence and datasheet terms, especially when you and your opponent disagree about timing. Treat the starter booklet as a tutorial and the Core Rule Book as the table copy you both check.

How to use it without slowing down your first games

Read the battle round section once before you play, then keep the book open to the phase you are in rather than flipping ahead. During Movement, place models and measure; during Shooting, resolve attacks; during Charge, declare and roll; during Fight, resolve melee. If a rule is unclear mid-game, make a quick call, note the page, and look it up after the round so the game keeps moving.

Where Kill Team and paint fit in

Kill Team is a separate skirmish game with its own core book, so the 40K Core Rule Book will not run a Kill Team match. If you already play Kill Team and want faction-specific cards, the Brood Brothers datacard pack is a good example of what to look for, but it still requires the Kill Team: Core Book. For painting, a Layer paint such as Canoptek Alloy goes straight over a Base coat without mixing, which makes it a simple next step after your primer and base layers.

Core Rule Book FAQ

Is the Core Rule Book the same as a codex?

No. It teaches the core game: datasheets, the five phases, terrain, and objectives. Faction-specific rules live in their own codex or index. Buy the Core Rule Book for the system; buy a codex for your army.

Can I learn 40K from the Core Rule Book alone?

You can learn the turn structure and core interactions, but you still need models, dice, and a way to measure. Playing a small game while reading the battle round section is faster than reading cover to cover first. Read the battle round, then play a small game.

Does the Core Rule Book cover Kill Team?

No. Kill Team has its own core book. Accessories like the Brood Brothers datacards support Kill Team, not standard 40K, and still need that separate core book. Match the book to the game you actually play.

Product facts

• Warhammer 40,000: Core Rule Book: 88-page softcover covering basic rules, the five-phase battle round, and battlefield and tactics. One compact reference you can keep open during a game instead of juggling loose printouts.
• Warhammer 40,000: Kill Team - Datacards: Brood Brothers (2024): 40-card Brood Brothers pack with operative datacards, faction rules, equipment, ploys, and a marker guide; requires the Kill Team: Core Book. Useful if you already play Kill Team, but it will not replace the 40K Core Rule Book for a standard 40K game.
• Warhammer Colour: Layer- Canoptek Alloy: 12ml Layer paint designed to go straight over Base paints and other layers without mixing. A low-effort way to add a clean metallic layer to your first models while you learn the rules.