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Ascender's Sandbox
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Ascender's Sandbox

by Juls88v1.1.0

Take full control of your run with the Ascender's Sandbox mod. This mod adds a dedicated "Sandbox" tab directly into your in-game settings, allowing you to toggle god mode, multiply your gold, or adjust your starting stats on the fly.

Created

Mar 14, 2026

Updated

May 3, 2026

View on Nexus Mods

Description

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Features


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NEW: Deckbuilder

  • Custom Decks & Relics: start off the run the way you want
  • Save & Share: save and share your configurations

Your decks are saved in <mods\yourFolder\decks> as individual json files. Share these files to show off your decks or create unique challenges.

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General & Health

  • God Mode: Become invincible
  • Custom Health: Customize your starting HP
  • Shield Control: Multiply the amount of block you gain and prevent your block from being lost or cleared

Wealth & Gold

  • Wealth Control: Multiplier for gold gains and a "Prevent Gold Loss" toggle
  • Starting Gold: Start every run with a custom amount of gold

Energy & Stars

  • Energy Buffs: Start with extra energy and prevent energy loss in combat
  • Star Scaling: Set starting stars, multiply star gains, and prevent star loss

Combat & Mechanics

  • Mega Draw: Customize your hand size to draw up to 50 cards per turn
  • Travel Backwards: Allows you to travel backwards. Be careful to not get stuck, as this will end your run!
  • Combat Control: Freeze enemies in place to prevent movement
  • Enemy Debuffs: Set a custom multiplier to increase the strength of debuffs applied to enemies
  • Travel Backwards: Allows you to travel backwards. Be careful to not get stuck, as this will end your run!
  • Combat Control: Freeze enemies in place to prevent movement
  • Enemy Debuffs: Set a custom multiplier to increase the strength of debuffs applied to enemies

Items & Rewards

  • Loot & Rewards: Force max card rarity, always receive upgraded cards, and ensure "Unknown" rooms always contain treasure
  • Potions: Set your starting potion slots and toggle an option to always receive potion rewards

Merchant

  • Merchant Settings: Give yourself a flat discount, customize max card removals, and toggle whether removal prices increase

Character Specifics

  • Necrobinder Settings: Customize Osty's starting HP, adjust how many Osty summons you get per round, and enable God Mode exclusively for Osty
  • Regent Settings: Choose to start your run with the Sovereign Blade in your deck, and customize its base mana cost and base damage

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Artwork by @PaintPunk


Thank you for creating this beautiful piece.

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Localization



I have added localization with the help of AI. If you would like to contribute to the mod and translate it feel free to shoot me a message. You can find the translation files in the "lang" directory.

Thanks to everyone for helping making the mod more accessible!

Currently translated into:

  • English
  • French (AI)
  • German (AI)
  • Italian (AI)
  • Japanese (AI)
  • Korean (translated by Asank)
  • Polish (AI)
  • Portuguese - Brazil (AI)
  • Russian (AI)
  • Simplified Chinese (AI)
  • Spanish - Latin America (AI)
  • Spanish - Spain (AI)
  • Thai (AI)
  • Turkish (AI)

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Disclaimer


You get a lot of freedom with the configuration, some values might break the game. If you find yourselft stuck, delete the <config.json> file in the mod directory. The configuration can also be edited directly via this file, in case you prefer this.

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Kown Issues


  • Using <Travel Backwards> and <God Mode> will softlock you in the UI. You are dead but the ending screen won't play. Quit the run to free yourself.


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Installation



  1. Open your Slay the Spire 2 game folder (SteamLibrary\steamapps\common\Slay the Spire 2)
  2. Inside the main game directory, create a new folder  name it "mods" (if you haven't already)
  3. Extract the zip into its own folder inside the "mods" folder
  4. Enjoy


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Feedback



Feel free to report bugs or request new features.