This category includes Kingdoms of Kalamar products designed for use with Dungeons & Dragons rules (2nd ed., 3rd ed., 3.5 ed., etc.).

Products using other rules systems (such as HackMaster) are located in their respective categories, even if the events in them occur in the Kingdoms of Kalamar campaign setting.

Products with rules for multiple systems (such as Roleplay Resource or SoloQuest books) are located in multiple categories, as appropriate.