The Tyranids are unlike any other race to be encountered by Humanity. They are the ultimate predators; to them all living things, from the lowliest insect to the most advanced civilisation, are mere prey. Only now are the inhabitants of the galaxy realising the scale of the threat – unless the Tyranids can be stopped, it will mean nothing less than the extinction of all. Codex: Tyranids contains a wealth of background and rules – the definitive book for Tyranids collectors. Within this 128-page hardback, you’ll find: Background - The Destroyer of Worlds: the origins of the Tyranids, from the first recorded appearance of their Hive Fleets to their seemingly-unstoppable advance throughout the galaxy, along with details of the manner in which their Hive Minds operate; - Invasion Swarms: a step-by-step guide to a Tyranid invasion, from the vanguard organisms who seed initial terror through to the swarms of feeder organisms that ultimately strip entire worlds bare; - Detailed background of the following Hive Fleets: Behemoth, Kraken and Leviathan, with dramatic recounting of famous battles and colour schemes for each; - Tendrils of the Great Devourer: Information and colour schemes for a further 6 Hive Fleets – Jormungandr, Hydra, Gorgon, Kronos, Tiamet, and Ouroboris; - A galactic map showing the currently-known major Tyranid incursions; - Background and details on each character and unit available to a Tyranid army; - A showcase of beautifully painted Citadel miniatures, with example armies featuring everything from individual images of models to battle scenes on terrain. Rules Everything you need to get a Tyranid army primed for games of Warhammer 40,000 is in here: - 39 datasheets containing rules for every Tyranid unit and miniature; - Army abilities reflecting the Tyranids’ methods of war on the tabletop; - Weapons of the Hive Fleets: wargear both ranged and close-combat for use by Tyranid Swarms; - Points values for all miniatures, weapons and wargear for use in Matched Play games; - The Shadow in the Warp: rules for Battle-forged armies, including: - Hive Fleet Adaptations for the following 7 Hive Fleets: Behemoth, Kraken, Leviathan, Gorgon, Jormungandr, Hydra and Kronos; - 6 unique Warlord Traits available for any Tyranid commander; - 7 Warlord Traits specific to the above-named Hive Fleets; - 28 unique Stratagems; - Bio-artefacts of the Tyranids: a selection of 12 rare weapons, spawned by the Hive Mind to ensure the galaxy’s doom; - Hive Mind Discipline: 6 psychic powers available to any Tyranids model with the Psyker keyword; - 6 unique Tactical Objectives.