Set within a fantasy world populated by fierce monsters and altruistic characters, Enclave is a third-person game emphasizing combat, exploration, and puzzle-solving. Two warring factions, the light and the dark, are in a bitter struggle for control of a region called the Outlands. A total of 25 outdoor and indoor locales, ranging from ornate castles to Gothic cathedrals, are spread across the land, each selectable from an overhead map. Unlike the Xbox original, in which players began the game fighting on behalf of the light side, PC owners can begin either the light or dark campaign right from the start.
The single-player campaign varies depending on the side, so players can explore new levels as different characters. Twelve playable classes are equally divided among the light and the dark. Fighting on the forces of good are knights, huntresses, wizards, druids, engineers, and halflings. The dark classes include assassins, berserkers, sorceresses, liches, bombardiers, and goblins. Each class has variable attributes and wields distinct weapons: some brandish swords and axes, while others fire magical energy from staves.
The action is played from a perspective behind the selected character as players fight their foes using a variety of combination attacks. Melee weapons such as swords, hammers, and axes can be swung in different directions using the mouse, while careful aiming is required using secondary weapons such as crossbows and long bows. Other useful equipment includes staves, whose power comes from a character's mana supply, multiple types of arrows, potions to replenish health, and shields.
Gold collected in each level can be used to upgrade equipment and supplies before each mission, and players are also free to switch classes if a battle becomes too difficult with a particular character. In addition to fighting, players can jump, crouch, climb, and swim to advance through the levels or to avoid enemy detection. PC enhancements over the Xbox original include higher frame rates, improved resolution, and additional checkpoints for more frequent saving.