Most runs in Slay the Spire 2 are decided in the first ten floors. Not because those floors are hard, but because the habits you start with follow you all the way to the boss. This opening guide gives new players a simple plan for the earliest decisions: what to settle before floor one, how to use your first blessing, what to take from early card rewards, and how to spend your first campfire and shop so they pay off later.
Before floor one: one character, one goal
Pick Ironclad for your first runs and stay with him until Act 1 feels routine. He starts with the most health, his cards do what they say, and strength scaling forgives imperfect play. When you are ready for a second character, Silent teaches long-fight planning, and the characters page links a starter guide for all five.
Then set one goal for the run — a learnable one, not win. Read every intent before you play. Reach the Act 1 boss above half health. Skip two card rewards that fix nothing. A checkable goal turns a loss into information, and the full beginner guide builds on exactly this idea.
Your first free decision: read the blessing
At the start of every act you choose one Ancient Blessing — a permanent bonus that replaced the boss relics of the first game. It costs nothing and takes no relic slot, so it is pure value; the only way to waste it is to grab something your deck cannot use yet.
The habit worth building: pause, look at your deck, and take the blessing that patches its biggest hole. Thin on damage? Take damage. Blocking fine but never finding the right card? Take draw or selection. When two options look equal, take the one that helps the next two fights, not the one that might matter in Act 3.
Floors 1-5: take cards that fix the next fight
Your starter deck is deliberately weak, so early rewards answer one question: what beats the fights directly ahead? One real attack card and one efficient block card carry most of Act 1. Fancy comes later.
Read intents before planning anything. Every enemy announces its next move, and the monster list covers the patterns worth memorizing. Blocking for 15 against a 4-damage hit is the most common wasted energy in the game; blocking 8 against a 24-damage hit is how runs end.
It is fine — usually correct — to take a plain good card over a themed one in Act 1. Let relics and rewards choose your direction instead of forcing one. The card reward priority guide is the short checklist we use at every reward screen.
Your first campfire, shop and elite
Campfires ask one question: can your current health survive the next bad fight? If yes, upgrade, and spend it on a number that matters — damage per hit, block per card, cards drawn. If a forced elite or boss is ahead and health is short, rest. The upgrade or rest guide compresses this into one line.
Shops are for problems. Removal is the best purchase in most shops — one Strike deleted improves every future draw. After that, buy an answer to a known fight ahead, or a potion before an elite. Wandering a shop with no gold and no goal is how floors get wasted.
Elites are the biggest risk and the best reward in the opening. Before committing to the path, run a simple check: enough health, at least one potion, and a campfire or shop between you and the fight. Two to three elites across Act 1 is a healthy pace once the deck can handle it — the map pathing guide and the Act 1 strategy guide cover routing in detail.
What a healthy opening looks like by the boss
By the Act 1 boss, a good opening has four pieces: damage that ends hallway fights in three to five turns, at least one dense block card, one scaling idea — strength, poison, orbs, Forge, anything — and one potion saved on purpose. With those four, the boss is a check, not a wall.
Missing a piece? Spend the last floors of the act fixing it, even if it costs some greed. If the run still collapses at the boss, read the Act 1 boss strategies, then skim the common beginner mistakes — the leak almost always started before floor ten.
Frequently asked questions
Which character should I pick for my very first run? Ironclad. Highest starting health, the most direct cards, nothing extra to manage. Keep playing him until Act 1 stops feeling scary.
Should I take an elite path at the very start? Not before your first card rewards. An elite on floor three with a starter-plus-one-card deck is how runs end early. Elites get good once you have damage, block and ideally a campfire on the route.
What should I buy at my first shop? Card removal first — nearly every deck wants one Strike gone. Then an efficient card that fixes your weakest upcoming fight, or a potion if an elite is close.
Upgrade or rest at the first campfire? Upgrade if the next fight is a normal one; rest if it is an elite or boss and your health cannot survive a bad draw. Upgrades do not help dead runs.
I keep dying in Act 1 — what am I doing wrong? Track where your health actually goes for one full run. It is almost always one of three things: taking cards from every reward, blocking against the wrong intents, or fighting elites before the deck is ready. The mistakes guide has the full list with fixes.