Pandemic

Readiness

ready (confidence=1.00, rules=1.00, fun=1.00). BGG rank: 171; year: 2008; weight: 2.39; playtime: 45 min

Core Loop

Pandemic is a fully cooperative game in which 2-4 players work as disease control specialists trying to eradicate four colour-coded diseases before they overwhelm the world. Each player has a unique role (Medic, Scientist, Researcher, Operations Expert, Dispatcher, etc.) with a special ability. On your turn you take up to 4 actions from: Move (drive/ferry to adjacent city on board, direct flight by discarding a city card, charter flight by discarding the city you're in, shuttle flight between research stations), Build a Research Station (discard the city card you're in), Treat Disease (remove 1 disease cube; Medic removes all), Share Knowledge (give or take a city card from a player in the same city), Discover a Cure (at a research station, discard 5 cards of one colour to cure that disease).

After your actions, draw 2 Player Cards. If an Epidemic card is drawn: infect the bottom city of the Infection Deck at maximum intensity (3 cubes), advance the epidemic counter, then shuffle the Infection Discard pile and place it on top of the Infection Deck — meaning previously infected cities will infect again soon. Then infect cities based on the current Infection Rate (2-4 cities), placing 1 cube each. Outbreaks occur when a city would receive a 4th cube — instead it spreads 1 cube to each adjacent city (chain outbreaks cascade).

Game ends: 4 cures discovered = win. Player deck exhausts, 8 outbreaks total, or any disease's cube supply runs out = loss.

Turn Structure and State

• Publisher/manual source is present and treated as the top rules authority.
• BGA tutorial is present; useful for exact turn flow and implementation gotchas.
• How-to-play transcript is present; useful for teach order and confusing steps.
• BGG description anchor: In Pandemic, several virulent diseases have broken out simultaneously all over the world! The players are disease-fighting specialists whose mission is to treat disease hotspots while researching cures for each of four plagues before they get out of hand. The game board depicts several major population centers on Earth. On each turn, a player can use up to four actions to travel between cities, treat infected [...]

Win Condition and Arc

Discover cures for all 4 diseases. The arc: early game establishes movement networks and manages outbreak hotspots; mid-game races to build research stations and collect colour-matched card sets for cures; late game is typically a race between triggering the final cure and losing conditions. Each epidemic card accelerates threat.

Decision Primitives

BGG mechanisms: Action Points, Chaining, Contracts, Cooperative Game, Events, Hand Management, Multi-Use Cards, Point to Point Movement, Set Collection, Simulation, Solo / Solitaire Game, Tags, Trading, Variable Player Powers, Variable Set-up

Memory-derived primitives:

• Cooperative play (all players win or lose together)
• Hand management (city cards for cures and movement)
• Network movement (world map adjacency)
• Risk management (outbreak chains, epidemic escalation)
• Variable player powers (role asymmetry)
• Resource management (disease cubes, research stations)

v4 controlled primitives: escalating_threat, cascading_failure, variable_player_powers, event_deck_seeded_threat, set_collection_concentrating

Top iOS archetype fits: coop 6.1, balatro 5.0, cozy 3.7.

Why It Is Fun

Cooperative games create unique social dynamics — the group debates priorities openly, and each role brings different problem-solving leverage. The escalating epidemic system is brilliantly designed: epidemics re-seed the infection deck with already-infected cities, meaning outbreaks become self-reinforcing. Players experience genuine tension as the board state threatens to cascade.

Player-voice evidence:

• Great introduction to Co-ops. Difficulty is scalable which improves ability to play over and over again. Game can annoying depending on personalities so if there is an alpha in the group you may want to set some ground rules about how...
• 初めて買ったアナログゲーム。 これとの出会いがなければここまでのめりこんでいなかったであろう。 近年の協力ゲームの代名詞的な存在やね。
• Good, fun cooperative game. Manages to always feel tense and close, right up to the end.
• Still one of my all-time favorite co-op games. That being said... I haven`t played a ton of co-op games, but this one will always have a special place.
• cooperative play mechanic • Variable levels of difficulty (Introductory, Standard, or Heroic) • Variable player powers facilitate some fun combos • Often suspenseful and exciting because a win (which isn't a foregone conclusion) is often...

Friction and Failure Modes

• Treat Sonnet-memory edge rules as draft until confirmed by manual, BGA, or transcript.

Translation and Design Hooks

• Use this card to ask: which primitive carries the fun if theme/licensing is removed?
• For iOS, look for short-session compression, clear state visualization, and a digital-only twist.
• For new tabletop design, look for the tension source and decide whether to preserve or invert it.

Edge Rules and Gotchas

• Epidemic cards are shuffled into the player deck in separate segments (not randomly distributed), so the spacing between epidemics is approximately regular — players can track roughly when the next epidemic is due
• Chain outbreaks: a city can only outbreak once per Infection phase (tracked with a marker), preventing true infinite cascades in a single phase
• Research stations form a network for shuttle flights; controlling 6 stations triggers a game constraint (must remove one to build another)
• The Medic role removes all cubes of a treated colour in one action and passively removes cubes from a cured disease without spending an action — dramatically overpowered in some analyses
• Quiet Night event card skips the infection phase (the only in-game mechanism to do so)
• Resilient Population event card permanently removes one card from the Infection Discard pile, reducing epidemic reinsertion

Sources Used

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    "kind": "pdf",
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    "note": "BGG file 27536 (Z-Man Games permission)"
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  {
    "kind": "llm_memory",
    "path": "data/llm_memory_sonnet/30549.md",
    "quality": 0.9,
    "note": "sonnet-self-rated-10"
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  {
    "kind": "bga_tutorial",
    "path": "data/bga_tutorials/30549.md",
    "quality": 0.85,
    "note": "BGA implementation rules summary"
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  {
    "kind": "bgg_comments",
    "path": "data/bgg_comments/30549.txt",
    "quality": 0.75,
    "note": "positive/player-voice sample"
  },
  {
    "kind": "youtube_transcript",
    "path": "data/youtube_transcripts/30549.txt",
    "quality": 0.7,
    "note": "how-to-play transcript"
  },
  {
    "kind": "wikipedia",
    "path": "data/wikipedia/30549.md",
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    "note": "board-game-suffix"
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