- Estimated achievement difficulty: 3/10 [Achievement Difficulty Rating]
- Offline: 35 
- Online: 0
- Approximate amount of time to 1000: 15-20 hours [Estimated Time to 100%]
- Minimum number of playthroughs needed: 1
- Missable achievements: None [all chapters can be replayed at any time]
- Does difficulty affect achievements: No difficulty setting
- Unobtainable/glitched achievements: None
- Extra equipment needed: None
The time is November 1348, when the Kingdoms of France and Britain are at war during the Hundred Years' War. Amicia de Rune is a young French noble living in rural Aquitaine with her parents and five-year-old brother Hugo, who was born with an unknown illness. One day after returning from a hunting session in the forest which shows signs of a plague, Amicia witnesses her home raided by English soldiers, which results in the deaths of many in the de Rune estate. Facing the pursuit of enemy soldiers and the verge of a plague outbreak, Amicia flees with Hugo to seek help while trying to understand what Hugo's condition is.
Note: If you wish to read the guide in the order of how achievements are unlocked, please refer to the forum guide HERE.
Out of the 35 achievements, 17 of them are story-related and unmissable, each of which is awarded upon the completion of a story chapter. Ten of them are chapter-specific, requiring you to perform a specific action or enter a specific location. For the sake of story-telling, very often once you progress through an area the backtracking path will be blocked, so all chapter-specific achievements are missable within the chapters themselves, but can all be re-attempted by selecting chapter replay in the main menu at any time.
Five achievements are collectible-related. There are 50 collectibles in this game across three categories: 13 flowers, 11 gifts, and 26 curiosities. Once they are collected they will be permanently saved in the inventory and thus need not be re-collected upon chapter replay or checkpoint restart. The numbers of available and collected collectibles in each chapter can be tracked in the chapter select menu of the game.
The remaining three miscellaneous achievements involve crafting 100 ammunitions, as well as fully upgrading the protagonist's sling and equipment. All of them require collecting materials from the environment, and while some are put at obvious locations, many are slightly out of story progression pathways so exploring the environment fully is highly encouraged. It is possible to replay chapters to gather more materials in order to fully upgrade everything.
A game which places emphasis on puzzle-solving and story-telling, A Plague Tale: Innocence offers a solid story told from the natural and touching interactions between the two child protagonists. Gameplay-wise, most puzzles are straightforward but still offer enough mental challenges. All achievements are relatively easy and basically no grinding is needed. All in all, the game can be completed rather quickly and, despite little replay value, the first-playthrough experience is well worth the price.
[XBA would like to thank ImaginaryRuins for this Roadmap]