Recall Rogue

Recall Rogue is a knowledge-based roguelite where you answer questions to strengthen cards and fight through a dungeon. Each card represents a real fact. Correct answers charge cards for stronger effects; you can skip a question to deal base damage, while a wrong answer still lets the card resolve at reduced power. The game uses FSRS, the spaced repetition algorithm behind Anki, to bring back facts you struggle with more often and move mastered facts further back in the queue.

Combat and card play

Each turn gives you five cards and 3 action points. Cards use one of five mechanics—Strike, Block, Hex, Overclock or Transmute—and have a chain color tied to a topic in your deck. Quick Play uses a card immediately for base damage without a question. Charge Play costs an extra action point and asks a quiz question: a correct answer strengthens the card, while a wrong answer still resolves it at reduced power. You can make three quick plays per turn, or one charged play and one quick play.

Playing cards from the same topic in sequence builds a multiplier: two matching cards grant 1.5x, and five grant 3.5x. Each run uses three chain colors drawn from your deck’s topics, and charging same-color cards in sequence can also raise the multiplier to 3.5x.

Enemies and dungeon

The dungeon has three regions, with combat, shops, rest sites, treasure rooms and mystery events. Its named locations and encounters include the Burning Library, the Wrong Answer Museum and the Riddle Stranger. There are 89 enemies, some of which respond to your quiz performance:

• The Peer Reviewer: gains strength each turn you do not charge a card.
• Pop Quiz: is stunned by correct answers but grows stronger when you play it safe.
• The Curriculum: becomes immune to quick plays halfway through the fight.
• The Crib Sheet: reflects your wrong-answer damage back at you.

There are 8 bosses with phase transitions. The Final Lesson quizzes you at 66% and 33% health. At campfires, you can heal or study three questions to level up cards without combat pressure; the Keeper sits by the fire.

Decks and study

Before each run, you choose from 100 curated decks containing 68,000 facts. Topics include:

• History: Ancient Greece, Rome, WWII, Medieval World, US Presidents, AP World History, AP U.S. History and AP European History.
• Science: the Periodic Table, AP Biology, AP Chemistry, AP Physics, and Dinosaurs & Paleontology.
• Languages: Japanese (JLPT N5-N1), Chinese (HSK 1-6), Spanish (A1-C2), French (A1-B2), German, Korean, Czech and Dutch.
• Chess: 620,000+ Elo-rated tactics on an interactive board, without multiple choice.
• Social sciences: AP Psychology, AP Macroeconomics and AP Microeconomics.
• Other topics: Famous Paintings, World Flags, Medical Terminology, Computer Science, Philosophy, Ocean Life, World Cuisines and NASA Missions.

Cards and progression

The game includes 98 card mechanics across six types: strikes, shields, hexes, buffs, debuffs and wild cards. Cards have mastery levels from 0 to 5 that scale as you answer correctly. You can also collect 90 relics that shape your build: Quicksilver Quill rewards fast answers, Scholar's Crown amplifies review queue cards, and Volatile Core deals 50% more damage while making wrong answers hurt.

Twenty ascension levels provide further challenge.

Game modes

Trivia Dungeon is the roguelite mode: choose a deck, fight through three acts and defeat the bosses. Study Temple lets you choose a deck and study it, using FSRS-weighted selection to focus on material you find difficult; combat remains, but the emphasis shifts to retention.