Act 4 Final Ascent

⭐ ⭐ (192 endorsements) 📥 19,506 downloads 📌 v0.1.2f 📅 3/12/2026
🟡 Updated this year

By iKenster · Gameplay

⬇ Download Mod Source: Nexus Mods ↗ 📅 Updated: 4/5/2026 📅 Created: 3/12/2026
⚠️ Potentially Incompatible — Recent Game Update

This mod may not work until the author updates it. Check for an update, or see the rollback guide.

🔍 Analysis

  • 👍 1.0% endorsement rate
  • 🏆 #23 of 748 Gameplay mods in this game by downloads

📋 About This Mod

Presenting: Act 4: Final Ascent

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Summary

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  • []Proceed to Act 4 (no conditions required) at the end of Act 3, includes a highly strategic boss fight.

    []No penalty for dying in Act 4. Character Stats and Run History, have a separate Act 4 toggle.

    []Playing Act 4 gives a bit more EXP towards Timeline unlocks.

    Balance

    ---------

    • []Act 1 to 3 Unchanged

      []Difficulty scales to # of players, Act 4 Difficulty Setting, and slightly to Ascension level

    Easy Installation

    ------------------

    • []Go to StS2 Install Location: Right click the game name in your Steam Library on left bar, go to Properties -> Installed Files -> Browse

      []Create folder named mods where StS2 is installed.

      []Put Act4FinalAscent.dll, .pck, and .json in mods folder (for organizing, you can put it in a subfolder in mods folder, name it what you want).

      Mod includes my Save Sync, Easy Save File Management!

      ------------------------------------------------------------

      Modded has separate save files, but you can transfer unlocks and progression using my Save Sync in this mod.

      • [](!) If this is your first time playing in Modded mode, Game Main Menu: Press to transfer progress from Vanilla.

        []If you go back to Unmodded later, .

        []Extra: With Save Sync, you can also save up to 3 ongoing solo runs per profile! Start a new run without abandoning the last one!

        []If you are using other Save management mods, they should be compatible.

        Bugs

        • -----
          • []If you're playing on public-beta branch, any new update might break the mod until I patch it. Currently confirmed to work up to: v0. 101. 0

          []I greatly appreciate bug reports, and I will apply fixes within 1-2 days usually, please DM me the log file: Act4_Logs.txt at %USERPROFILE%\AppData\Roaming\SlayTheSpire2\logs

🤖 AI-enhanced — based on mod data

Act 4 Final Ascent is a gameplay mod that adds a custom act with new events and a strategic epic boss fight, giving players more opportunities to use their endgame decks. With 192 endorsements and nearly 20,000 downloads, it's a well-received addition for players seeking endgame content.

✨ Key Features

Adds a custom act with new events.
Features a strategic epic boss fight.
Provides more opportunities to play with your endgame deck.

📊 Pros & Cons

✅ Pros

  • Solid community backing with 192 endorsements and nearly 20k downloads.
  • Adds meaningful endgame content for players who've maxed out their decks.
  • Custom act with events and a boss fight gives fresh challenges.

⚠️ Cons

  • Only one act and one boss fight—might not be enough for players wanting a full expansion.
  • No mention of compatibility with other gameplay mods, so potential conflicts exist.
  • Last updated in April 2026, so it might not be actively maintained.
🎯 Is This For You?
For Slay the Spire players who've beaten the main game and want more endgame challenges. If you're looking for a full expansion with multiple acts, this might feel thin. But if you want a focused, strategic boss fight and new events, this is a solid pick.
📦 Install:Easy· Under 1 minute

💡 Beginner Tips

  • Make sure your game is up to date before installing to avoid version mismatches.
  • If you use other gameplay mods, test this one in a separate profile to check for conflicts.
  • Back up your save files before adding new content mods, just in case.

📊 Mod Details

Game
Slaythespire2 Mods
Author
iKenster
Version
0.1.2f
Downloads
19,506
Endorsements
192
Category
Gameplay
Created
3/12/2026
Updated
4/5/2026

🧩 Commonly Used Together

Users add these mods to the same collections — a real compatibility signal, not an AI guess.

🔧 How to Install Slay The Spire II Mods

Download from Nexus Mods.

📖 Full step-by-step install guide for Slay The Spire II →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Slay The Spire II commands, item IDs, and more.

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