Puzzle Quest: Immortal Edition serves as the definitive compilation of the original Match-3 RPG, bringing together content from Puzzle Quest: Challenge of Warlords, Revenge of the Plague Lord, and The Legend Returns. Players create a hero, gaining skills and spells by engaging in Match-3 battles. These encounters demand matching three or more gems of the same color to accrue mana, which then fuels spellcasting against opponents, facilitates item acquisition, and enables progression through quests.
Gameplay extends beyond gem matching to include varied opponents, each necessitating distinct strategies. Players complete quests and side quests, encountering companions who provide assistance. The hero learns spells and collects items, while a Citadel can be built and expanded with structures granting special powers. Creatures can be captured for use as Mounts and trained, or monsters can be captured to research their spells through a mini-game. Hidden Runes allow for magical item creation in the Citadel Forge, and cities can be besieged to expand dominion. This edition consolidates nearly two decades of Match-3 RPG mechanics into a single experience.