Battlesystem is a tabletop miniature wargame designed as a supplement for use with the Dungeons & Dragons role-playing game. The original Battlesystem was printed as a boxed set in 1985 for use with the first edition AD&D rules. For the second edition of AD&D, a new version of Battesystem was printed as a softcover book in 1989.
Battlesystem was first released in 1985, compatible with either Advanced Dungeons & Dragons or the Basic / Expert Dungeons & Dragons (see editions of Dungeons & Dragons). The game was promoted as a successor to Chainmail.
In a Battlesystem game, each miniature represents a hero, a commander, or multiple troops, depending on the troops' level or hit dice. There are no statistics in the game for any troops or characters, but, instead, all are derived from the relevant Dungeons & Dragons publications. For instance, to add any creature from the Monster Manual or similar publications as troops, its in-game point cost can be derived from the XP reward listed in the Monster Manual for killing the creature.
The first edition of Battlesystem was a set of rules and components for use in running mass fantasy battles, involving miniatures rules using metal or cardstock figures, or counters. The first edition set included rules with two levels of complexity, four scenarios, a guide to miniatures, cardboard figures, and over 800 counters. It was meant to be used with either the Advanced Dungeons & Dragons game or the simpler Dungeons & Dragons rule book sets available at the time.
The first edition of Battlesystem was sold as a box set which contained:
The Rulebook is divided into four parts, allowing three levels of play. The first part is an introduction. The second part, called "The Basic Game", covers the basic rules of movement and melee combat. The third part, "The Intermediate Game", adds missiles, artillery, cavalry, individual Heroes, special formations and terrain effects. The fourth part, called "The Advanced Game", allows for magic, flying, weather, night battles and special monsters. It also introduces campaign rules that allow for integration of Battlesystem games into a role-playing campaign. The game does not require a Dungeon Master, although the Rulebook recommends use of a referee, especially if using certain magics such as invisibility or illusions.