Beginner's Guide — Drafting, Gems, Keys & Daily Steps

Updated May 25, 2026 · 11 min read · Real mechanics for new players

Blue Prince doesn't hold your hand. You get a key, a deadline, and a mansion that rearranges itself every day. The roguelike draft system means each run is different, but a small set of mechanics underlies everything. This guide covers what you actually need to know on your first runs — the draft system, the 5×9 grid, the four rarity tiers, gem costs, and what to prioritize before you start chasing Room 46.

The Mansion Grid

The mansion is a fixed 5-column-wide by 9-rank-tall grid. You start at the Entrance Hall (Rank 1, column 3 — bottom center). The Antechamber is fixed at Rank 9 center. Everything else is drafted.

• Ranks 1–3: Mostly common rooms. Low-difficulty.
• Ranks 4–6: Standard rooms. Resource economy heats up.
• Ranks 7–9: Unusual and Rare rooms. You'll see Puzzle rooms, Sanctum-tier content, Lab and Greenhouse.
• Rank 10: Room 46 only.

The total Room Directory holds 110 rooms. Only 45 fit per day. The room pool you actually see depends on which rooms you've discovered and unlocked via the Drafting Studio.

How Drafting Works

Each time you open a door, you're shown three room options. Each option has:

• A gem cost: 0, 1, 2, 3, or 5 gems.
• A color/type tag: Red Room, Hallway, Shop, Green Room, Blueprint, Bedroom, or Blackprint. Some rooms have two tags.
• A rarity tier.

The first room in any draw has its cost waived. So if all three options cost gems, you still get one for free. Pick carefully — the other two vanish for that draw.

The Four Rarity Tiers

Practical takeaway: don't try to draft the Lab or Observatory on Rank 1. You're statistically unlikely to see them until Rank 5+.

The Four Daily Resources

• Steps — your movement budget per day. Caps at 50 by default (lower with certain modifiers like Curse Mode, which caps at 13). Steps reset every morning.
• Coins (Gold) — used at Shops, Pawn, and certain puzzles (Bookshop sells "A New Clue" for 50 gold, for example). Some Coin persists; some resets.
• Keys — open locked doors. Daily-pool resource.
• Gems — pay the draft costs. The lifeblood resource. Earn them in the Mine, Vault, Parlor, and many puzzle rooms.

What to Do on Day 1

1. Don't rush Room 46. Day 1 is reconnaissance. You won't make it past Rank 4 or 5 with starting resources.
2. Draft rooms with branching exits. Avoid Dead Ends early — they waste a draft slot.
3. Read every note. Notes, books, and "Blue Tents" pamphlets are the puzzles' real instruction manuals. The Vault, Boudoir safe, Family Core cipher — all sourced from in-room notes.
4. Save Keys for chest doors. Wooden doors and standard locks unlock with the regular pool; chest doors and Vault deposit boxes need specific keys.
5. Sleep with resources left over. Ending the day with 10 unused steps and 4 gems is much better than burning out at Rank 6 with nothing.

What Persists Across Runs

Most things reset each morning, but a few things stick:

• Drafting Studio unlocks — new room floor plans you've added to the deck.
• Basement doors — once opened with the Basement Key, they stay open forever.
• Vault Keys — collected items survive sleeping.
• Trophies — display in the Trophy Room.
• Found Floorplans — hidden room blueprints persist once collected.
• The Antechamber pillar contents — re-spawn each run, so you'll re-grab the Basement Key on every fresh attempt.

Rooms You Want Drafted Early

Worth prioritizing on most runs:

• Pantry / Coat Check — store items between days and refund Steps. Massive economy boost.
• Workshop — crafts the Shovel, Burning Glass, Detector Shovel, and other key combine items.
• Library — books needed for the A New Clue cipher, the Final Exam, and lore.
• Drafting Studio — unlocks new room floor plans permanently.
• Boiler Room or Electric Eel Aquarium — powers connected rooms (Laboratory etc.) via ducts.

Upgrade Disks

Late-game items that permanently modify a specific room with one of three perks. Best targets:

• Parlor Upgrade — extra wind-up key, halves the cost of wrong guesses.
• Billiard Room Upgrade — second dartboard attempt or hint.
• Lab Upgrade — additional experiment slot or persistent trigger.

Beginner FAQ

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