The 2019 edition of The Castles of Burgundy (20th Anniversary Edition) includes eight expansions, seven of which were previously released as promotional items and one new to this release. These expansions are not included in the normal base The Castles of Burgundy.

The Castles of Burgundy (20th Anniversary Edition) is set in the Burgundy region of High Medieval France. Each player takes on the role of an aristocrat, originally controlling a small princedom. While playing, they aim to build settlements and powerful castles, practice trade along the river, exploit silver mines, and use the knowledge of travelers.

The game is about players taking settlement tiles from the game board and placing them into their princedom, which is represented by the player board. Every tile has a function that starts when the tile is placed in the princedom. The princedom itself consists of several regions, each of which demands its own type of settlement tile.

The core game mechanism involves two dice. The pips show the kind of action the players are allowed to do (example: roll a 2 and a 5: using the 2 the player buys a watch tower and places it on a 5 city tile which triggers the function of the tower with additional advantages). It is possible to influence the dice, so the player is not completely subject to luck.