Dungeons & Dragons Tactics is a tactical role-playing game released on the PlayStation Portable handheld video game console. It is set in the world of Dungeons & Dragons and uses a strict interpretation of the Dungeons & Dragons 3.5 Edition rule set.
In the campaign storyline, players lead a party of adventurers on their quest to investigate an ancient being, about which little beyond the name is initially known. The plot is eventually revealed to be an epic contest between two dragons competing for godhood. The player can choose the path of good or evil, with different quests available depending on which is preferred, although the distinction between the two is not always clear. The game is divided up into a number of distinct battles or missions (30+), with the player able to access the majority of these during a given campaign, since several of the scenarios are mutually exclusive. Scenarios cannot be re-played once successfully completed.
The campaign revolves around a single lead character, with the other characters playing a supporting role. At the start of each scenario or battle, players select which additional adventurers to take along (up to a total of five such auxiliary characters after the first few scenarios). While this technically allows one to have more than six adventurers, only characters who actually participate in a given battle earn experience, so attempting to field a larger stable of cohorts serves to dilute earned experience levels.
The game features the core character classes from the D&D rulebook: the Barbarian, Bard, Cleric, Druid, Fighter, Monk, Paladin, Ranger, Rogue, Sorcerer, and Wizard, as well as two non-core classes, the Psion and Psychic Warrior. A full set of character generation rules permit players to create their own characters, or use pre-generated characters selected from a "character library".
Source: Wikipedia, "Dungeons & Dragons Tactics," available under the CC-BY-SA License.