De Bellis Antiquitatis
THE CLASSICS
Author: Phil Barker & Richard Bodley Scott
Publisher: Wargames Research Group, 1990
Period: Sword & Shield
LIBRARIAN'S SUMMARY
Few rulesets deserve a place on the Wargame Library Classics shelf more than DBA. First published in 1990 by Wargames Research Group, De Bellis Antiquitatis offered ancient and medieval players something radically compact--whole armies represented by just twelve elements, fought to a conclusion in about an hour. The game was supported by a sweeping army-list system covering roughly 3000 BC to the late medieval period. It was affordable, portable, competitive, and endlessly expandable. DBA went on to inspire a generation of new systems and spin offs, like the popular DBM mass battle variant. It remains widely played over 40 years later, now in its third (and final?) edition.
"Simple, fast-play ancient wargames that still reward generalship."
-Phil Barker
Legacy
DBA came to life in 1988 as a 2-page game played at the Society of Ancients conference. A proper first edition, expanded to 10-pages, appeared two years later. Prior to its release, ancient wargaming was dominated by large, time-consuming systems burdened with layers of detail and bookkeeping. DBA challenged that model head-on. In the introduction, Barker made his intent unmistakable: “Our intent is to provide the simplest possible set of wargames rules that retain the feel and generalship requirements of ancient and medieval battle.”
It proved a revolutionary (and incredibly popular) approach. DBA demonstrated a full historical experience could be achieved with minimal components and that meaningful decisions could exist without granular simulation.
DBA became the foundation of the wider “DBx” family, influencing later systems such as DBM, DBMM, Hordes of the Things, and many other element-based ancient and medieval games. Its greatest legacy may be the idea that historical wargaming did not need hundreds of figures or an entire afternoon to feel satisfying. A DBA army could be built cheaply and played repeatedly in a single evening. That made it a gateway game, a tournament game, and a design landmark all at once. DBA is now in its third edition, still actively played by a strong global community. Thanks to the publisher, WRG, the 1990 first edition of DBA is available as a free download.
HOW IT PLAYS
DBA compresses the battlefield into a tight and elegant system built around command friction, positional combat, and decisive outcomes. Each army consists of twelve elements, with each element representing a tactical unit rather than individual soldiers. These elements are categorized broadly—blades, spears, warband, knights, bows, psiloi, and others—based on their battlefield role. This abstraction allows armies from widely different periods to interact smoothly while still retaining their historical character through combat matchups and behavior. A Republican Roman army could face off against an early medieval Norman army in a DBA tournament setting!
At the heart of the system is command and control, represented by a single d6 die roll at the start of each turn. This determines how many Player Initiative Points (PIPs) are available, which in turn dictates how many units can be moved. This simple mechanic introduces constant tension. Players must decide whether to advance their main battle line, respond to a developing threat, or exploit an opportunity, all while constrained by limited command capacity.
Movement is structured and rigid. Units can move individually or as groups, but maintaining cohesion is critical. Terrain disrupts formations, slows advances, and can fracture battle lines if handled poorly. DBA reinforces the idea that ancient warfare was not a chaotic free-for-all, but a contest of organized formations where alignment and timing were everything.
Combat is resolved through opposed die rolls modified by troop type, positioning, terrain, and support from nearby units. The interactions between troop types are central to the system—pikes excel against cavalry, blades dominate other infantry, and warbands rely on aggressive charges. Flanking and overlaps are often decisive, as even a small positional advantage can tip the outcome. Combat results are immediate and often unforgiving. Units do not gradually wear down over time; instead, they recoil, flee, or are destroyed outright. This creates a battlefield where mistakes are punished quickly and success can cascade. The game typically ends when an army loses a set number of elements or its general. This is why two experienced players could reasonably complete two or three games in a single evening.
Beyond individual 1-vs.-1 battles, the first edition includes a compact campaign system that is often overlooked. Designed for three to six players, it introduces seasonal turns, resource management, and strategic movement across an abstract map. Armies maneuver between provinces, fight battles using the core rules, and manage losses and reinforcements over time. This layer transforms DBA from a quick-play skirmish system into a broader strategic experience, aligning with its goal of being a complete wargaming package.
Final Note
DBA is famously terse and sometimes difficult to parse, giving rise to the term "Barkerese" for its prose. Even at just 10 pages, the rules can be a slog to read and understand...and yet...DBA's importance cannot be overstated. It compressed the complexity of ancient warfare into a system that is fast, portable, and endlessly replayable. More than that, it changed how designers think about historical games. Even today, countless rulesets echo its ideas and can claim some design lineage to the concepts pioneered by Phil Barker.