Every Warhammer 40k rulebook edition is a snapshot of how the game played at that moment, from the loose skirmish rules of 1987 to today’s streamlined battle system. Knowing which edition you’re holding matters because the rules, army lists, and points all change between them.
What the core rulebook actually is
The core rulebook is the main rulebook for Warhammer 40,000. It teaches you how to move models, shoot, fight in melee, and resolve a battle on the tabletop.
It’s separate from your army’s codex or index, which holds your faction’s datasheets and points. You need both to play a pick-up game.
Some editions shipped the rulebook only inside a starter box, so you couldn’t always buy it on its own.
Every edition of the main game
Games Workshop has released a new edition roughly every three to six years since 1987. The first was Rogue Trader, and the line has run continuously since.
The gap between editions has tightened in recent years, with 8th, 9th, and 10th arriving in 2017, 2020, and 2023.
| Edition | Year |
|---|---|
| Rogue Trader (1st) | 1987 |
| 2nd | 1993 |
| 3rd | 1998 |
| 4th | 2004 |
| 5th | 2008 |
| 6th | 2012 |
| 7th | 2014 |
| 8th | 2017 |
| 9th | 2020 |
| 10th | 2023 |
| 11th | 2026 |
Spin-off and specialist rulebooks
Warhammer 40k isn’t just one game. Games Workshop has published rulebooks for smaller skirmish games and huge-scale battles set in the same universe.
Kill Team covers small squad skirmishes, Necromunda handles gang warfare in the underhive, and the Horus Heresy is its own separate game set 10,000 years before the main timeline.
There are also rulebooks for Aeronautica Imperialis, Battlefleet Gothic, Epic, Gorkamorka, Inquisitor, and Space Hulk. Each uses its own rules and miniatures.
- Kill Team: small-scale skirmish rules, with editions in 2013, 2016, 2018, 2021, and 2024.
- Necromunda: gang warfare, with editions in 1995, 2003, 2018, and 2026.
- Horus Heresy: 1st edition in 2017, 2nd in 2022, 3rd in 2025.
- Battlefleet Gothic: spaceship combat, 1999 and 2004.
- Epic: massive battles, from Adeptus Titanicus in 1988 through Epic Armageddon in 2003.
Why editions matter to players
Rules change between editions, so a list that worked in 9th won’t necessarily work in 10th. Points values, unit abilities, and core mechanics all get revised.
That’s why older rulebooks are mainly collector’s items or history now. They’re not compatible with the current game unless your group agrees to play a legacy edition.
Key facts
- The first Warhammer 40k rulebook, Rogue Trader, was published in 1987.
- There have been 11 main editions, with the 11th arriving in 2026.
- Core rulebooks cover universal rules; faction rules live in codices or indexes.
- Spin-off games like Kill Team, Necromunda, and the Horus Heresy have their own separate rulebooks.
- Editions are not cross-compatible, so points and unit rules change with each release.
FAQ
How many editions of Warhammer 40k are there?
Eleven main editions, starting with Rogue Trader in 1987 and running through to the current edition. Each one replaced the last rather than sitting alongside it.
Do I need the core rulebook to play?
Yes, for the main game. You need the core rulebook for the universal rules, plus your faction’s codex or index for your army’s datasheets.
Are the older rulebooks still usable?
Not with current rules, since points and mechanics change between editions. Some groups still play older editions for nostalgia or house rules.