The King's Decree - Fully Localized (Steam Workshop Release)

Steam Workshop Released

You can now find and install this mod via the official Slay The Spire 2 workshop page.

Installation Instructions

1. Install BaseLib (required dependency, v3.1.8 or later) — under assets, download the .zip file.
2. Download The King's Decree and extract the "thekingsdecree" folder into: Steam\steamapps\common\Slay the Spire 2\mods\
3. Your mods folder should look like: mods\thekingsdecree\thekingsdecree.dll mods\thekingsdecree\thekingsdecree.pck mods\thekingsdecree\mod_manifest.json
4. Launch the game. The mod loads automatically.

Main Features

• Three-act quest line — Encounter the King's Servant in Act 1, face Mardan's Trial in Act 2, then meet the King in his Throne Room in Act 3. Every step is gated by the previous one; no skipping ahead.
• The King's Servant event — Appears in Act 1 only. Three options:
• Accept the Summons — Obtain Mardan's Challenge, an unplayable Quest card that guarantees Mardan's Trial spawns in Act 2.
• Offer Blood — Lose 5 HP. Upgrade a card.
• Humbly Decline — Gain 10 Max HP. Downgrade a random upgraded card.

Mardan's Trial event — Quest-only event in Act 2, summoned by Mardan's Challenge. The King's Champion waits at the warrior's resting place. Two options:

• Accept the Challenge — Fight the King's Champion. Win to obtain Mardan Fu Mardan's Ring and the King's Invitation.
• Bargain for the Ring — Take Mardan Fu Mardan's Ring without a fight. Bear the King's Curse in exchange.

The King's Champion — An Act 2 quest-fight enemy. 165 HP, signature Royal Bearing power, and a fixed four-move cycle of Stance (Block), Judgment (multi-hit), Demand (single hit + Weak), and Wrath (single big hit). Calibrated against the Hive elite tier; class-neutral mechanics so every character has a fair fight.
Royal Bearing power — At the end of each of the Champion's turns, he gains Strength. Modeled after vanilla Territorial.
The King's Throne Room event — Quest-only event in Act 3, summoned by the King's Invitation. Present your invitation to enter, then choose:

• Forge the Ring Anew — Replace Mardan Fu Mardan's Ring with Sultan's Ring. Sultan's Ring triggers each turn instead of once per combat — devastating for Power-heavy decks. Costs 20% of your Max HP.
• Open the Treasury — Obtain 3 random Relics and 60-120 Gold.
• Ask for Power — Remove 4 random cards from your Deck and choose a Rare card from any character.
• Royal Refinement — Upgrade 5 cards of your choosing.

In multiplayer, players who arrive at the Throne Room without an Invitation can attempt to Parley for a 10% chance to gain audience anyway — no penalty on failure.

Mardan's Challenge Quest card — Unplayable. Forces Mardan's Trial to spawn in Act 2. Follows MegaCrit's own quest card conventions (Lantern Key, Spoils Map) for deck weight, appearance, and hover tips.
King's Invitation Quest card — Unplayable. Unlocks the King's Throne Room in Act 3. Earned by defeating the King's Champion.
Mardan Fu Mardan's Ring relic — The first Power you play each combat is played an extra time.
Sultan's Ring relic — The first Power you play each turn is played an extra time.
King's Curse relic — Lose 1 HP at the start of each combat.
Configurable King's Servant spawn mode via the in-game mod config — Default (natural Act 1 event pool), Enhanced (boosted appearance in Act 1), or Guaranteed (first Act 1 event room is always King's Servant).
Fully translated into all 14 official game languages — English, German, European Spanish, Latin American Spanish, French, Italian, Brazilian Portuguese, Polish, Russian, Turkish, Japanese, Korean, Simplified Chinese, Thai. Every mechanical term (Power, Upgrade, Rare, Ascension, Max HP, etc.) uses MegaCrit's exact vanilla vocabulary — no invented terminology.
Fully compatible with singleplayer and multiplayer. The King's Servant in Act 1 and Mardan's Trial in Act 2 run as shared events so every player in the lobby experiences them together; the King's Throne Room in Act 3 is per-player so each player chooses their own reward path independently.
Custom AI-generated art — event portraits, card portraits, and the Royal Bearing power icon, all matching the vanilla art style.

Translations

Non-English translations are AI-assisted, with every mechanical term cross-referenced and locked to MegaCrit's official vanilla translations. If you notice any mistranslation, awkward phrasing, or vocabulary drift in your native language, corrections are very welcome. Two ways to help:

• Easy — leave a comment on this Nexus page describing the issue and your suggested fix.
• Technical — submit a pull request to the public translations repository. All contributors will be credited.

Requirements

• BaseLib v3.1.8 or later (mod dependency — must be installed).
• Slay the Spire 2 (Steam version).

Shout Outs

• MegaCrit for creating Slay the Spire 2.
• Alchyr for BaseLib, which makes STS2 modding easier.
• The STS2 modding community for documentation and support.