Walkthrough#
Slay the Spire has no traditional “main quests and side quests,” and no hour-by-hour progression table. Its structure is single-run: pick one of the four characters — the Ironclad, the Silent, the Defect, or the Watcher — start at the base of the Spire, climb a randomly generated branching route, pass through Acts 1, 2, and 3, defeat each act’s boss, and optionally enter the hidden Act 4 to challenge the Heart. Understanding the node types on this map and planning every landing point around them is the entire essence of the route.
I. The Complete Skeleton of a Run#
The progression order is fixed: “pick a character → climb through three acts → defeat each act’s boss → (with all three keys) enter Act 4 to fight the Heart.” Each act map contains about fifteen nodes, and you follow the branches from bottom to the boss at the top. The table below breaks down the rhythm:
| Stage | Core goal | Deck state | Key decision |
|---|---|---|---|
| Act 1 | Build damage, bank enough to kill the boss | Starter deck + a few new cards, direction forming | Fight an elite for a relic? |
| Act 2 | Add AoE and reliable block | Archetype taking shape | Buy cards or remove cards at shops |
| Act 3 | Get the engine running, secure burst | Archetype complete, runs continuously | Campfire: upgrade or heal |
| Act 4 | Tune the deck for the Heart | High completion | Are all three keys collected? |
II. Map Nodes and Route Choice#
Each map node is one encounter; you can only move along adjacent branches, and the route taken cannot be retraced. Reading each node’s reward and cost is step one of route planning.
| Node | Icon | Reward | Cost | Advice |
|---|---|---|---|---|
| Normal combat | Monster | Gold, card reward | HP, tempo | The main source of gold and new cards |
| Elite combat | Gear | Powerful relics, more gold | Heavy HP loss | Fight if you can win; don’t get greedy |
| Unknown (?) | Question mark | Events, random encounters, gold | Possible downsides | Unknown risk; gauge deck resilience |
| Treasure chest | Chest | One relic | None | A free relic — usually worth it |
| Shop | Coin | Buy cards, relics, card removal | Gold | Removal is usually the best buy |
| Campfire | Flame | Upgrade a card or heal | Choose one | Depends on HP and deck |
| Act boss | Skull | Gates the next act | A hard fight | Your deck gets audited here |
The core routing principle: in Act 1, try to place [elite nodes] on paths you’re confident you can win, because elite relics often define the whole archetype. From Act 2 on, make sure your route passes at least one [campfire] and one [shop] for card removal; if your deck’s healing is thin, favor campfire heals and skip elites.
III. Campfire Decisions#
The campfire is the route’s first recurring dilemma: upgrade a card or heal. Default to upgrading, because upgrades materially raise deck strength.
| Situation | Advice |
|---|---|
| HP above 70% | Upgrade core cards first |
| HP below 30-40% and a hard fight is next | Heal to survive |
| A must-upgrade key card in hand | Upgrade regardless of HP |
| One step from the boss and HP is critical | Heal so you can actually fight |
The campfire has a third hidden use: later in a run, if you intend to fight the Heart, you can choose “Recall” at a campfire, embedding the Ruby Key at the cost of that rest.
IV. Elite Fights: Rewards and Risks#
Elites are among the route’s highest value-per-effort nodes. They drop powerful relics from the exclusive elite relic pool plus heavy gold, often deciding your archetype’s direction. The cost: elite damage far exceeds same-act normals.
| Consideration | Notes |
|---|---|
| Reward | One powerful relic + big gold |
| Risk | Heavy HP loss that can collapse the rest of the run |
| Criterion | Can your deck produce enough defense or burst within 3-4 turns? |
| Special case | Act 3 fields a special “super elite” with clearly boosted HP and mechanics |
Practical advice: the first two Act 1 elites are usually worth fighting; if your deck’s output is clearly insufficient, skip the elite and keep HP rather than wrecking yourself for one relic. Before a super elite, make sure you’re holding potions as a floor.
V. Deck Goals by Act#
Each act demands different things from your deck — adjust card-taking by act:
| Act | Deck goal | Take | Avoid |
|---|---|---|---|
| Act 1 | Kill normals fast | High-quality single-hit attacks | A pile of pointless defense |
| Act 2 | Handle packed encounters | AoE, reliable block, draw | Chasing only big single hits |
| Act 3 | Sustain the engine | Engine cards, energy, draw | Uncoordinated misc cards |
| Act 4 | Beat the Heart | High burst and survival tools | Meaningless filler |
VI. Shop Spending Priorities#
The shop is the only channel that converts gold directly into power. Gold is finite — spend by priority:
| Priority | Purchase | Why |
|---|---|---|
| Highest | Card removal | Cutting dead cards sharply raises key-card draw rates |
| High | Key archetype cards | Buying exactly the core card you lack |
| Medium | Powerful relics | The earlier you get them, the more they pay |
| Low | Potions | For emergencies as needed; don’t hoard |
| Not recommended | Irrelevant cards | They drag down deck flow |
VII. Toward the Heart: Collecting Three Keys#
If your goal is the hidden final boss, “the Heart,” you must collect three keys during the climb, which open the Act 4 entrance after the Act 3 boss.
| Key | How to get | Notes |
|---|---|---|
| Ruby Key | Choose “Recall” at a campfire | Sacrifices that rest; don’t take it at critical HP |
| Emerald Key | Defeat an empowered super elite | Watch for its node before Act 3 ends; prep for a hard fight |
| Sapphire Key | Granted after defeating the Act 3 boss | Requires the first two keys already in hand |
With all three keys collected, a hidden door appears on the Act 3 boss battlefield, leading into Act 4. Act 4 holds only the Heart fight plus a few lead-in encounters — no normals, no campfires — so arrive at full strength.
VIII. How Ascension Changes the Route#
Clearing once unlocks [Ascension], levels 1-20. Each level adds a penalty — from raised elite/boss HP and shop prices at low levels, to lower starting HP, more curses, stronger enemies, and less healing higher up — steadily tightening resources. The impact on route planning: the higher the Ascension, the less you can waste any campfire, shop, or elite opportunity.
| Ascension band | Main penalties | Route response |
|---|---|---|
| 1-5 | More elites, higher boss HP, pricier shops | Judge elites even more strictly by deck strength |
| 6-10 | Lower starting HP, more curses | Skip elites more; plan healing more |
| 11-15 | Stronger enemies, less healing, riskier events | Route around high-damage nodes |
| 16-20 | Stacked extreme penalties | Waste no campfire or shop visit |
IX. Where Runs Commonly Collapse#
Review lost runs and the problem is rarely one boss — it’s these route-level classics. Avoiding them sharply raises clear rates:
| Common mistake | Consequence | Correct play |
|---|---|---|
| Elites for greed, HP collapses | Cascade of later losses | Skip what you can’t beat |
| Always healing at campfires | Deck never gets strong | Default to upgrading |
| Buying cards but never removing | Bloated deck | Remove dead cards first |
| Moving without reading the map | Missing shops or campfires | Scan the whole act when the map opens |
| Ignoring potions | Key fights go wrong | Spend potions before elites and bosses |
X. Beyond the Route: Combat Judgment#
Past the nodes, what really decides a run is anticipating small-scale gains and losses in each fight. A few universal combat principles to operationalize the route rules above:
- When the act opens, scan the whole map — elite and boss positions are shown — and pick your preferred line.
- In combat, playable-hand count matters more than you’d think; avoid ending up with nothing to play on a critical turn.
- HP and damage are always on a scale: fights ended fast cost less HP; the longer they drag, the likelier a late collapse.
- Against enemies with minions, clear the small ones first; against armor-stacking enemies, break armor first.
- Don’t stuff “maybe useful” cards into the deck — leaner decks run smoother.
- Potions persist within the act; use them when they matter, especially before elites and act bosses.