Isa's Yandere Sebastian Dialogue Expansion
⚪ Last updated 2021⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 4.6% endorsement rate — high engagement, a strong quality signal
- 🏆 #13 of 143 Dialogue mods in this game by downloads
📋 About This Mod
Turns Sebastian into a yandere. Includes over 200 lines of pre- AND post-marriage dialogue, festival dialogue, and much more! See the description for a full list of features!ATTENTION: !!! The dialogue will NOT show up if you have less than
Isa's Yandere Sebastian Dialogue Expansion transforms Stardew Valley's Sebastian into a yandere, adding over 200 lines of pre- and post-marriage dialogue, festival dialogue, and more. With 9,270 endorsements and nearly 200,000 downloads, it's a popular choice for players seeking a darker, obsessive romance twist.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust: 9,270 endorsements and 199,794 downloads
- Massive content drop: over 200 lines of dialogue keeps things fresh
- Festival dialogue means the yandere vibes follow you through the whole year
⚠️ Cons
- Last updated in 2021 — might not play nice with the latest Stardew updates
- The description cuts off mid-sentence, so you might miss important install notes
- Yandere themes aren't for everyone — this is a very specific flavor of romance
For Stardew Valley players who've romanced Sebastian a dozen times and want a darker, obsessive twist. If you're into yandere tropes and want more dialogue depth, this is a must-try. Skip if you prefer wholesome, vanilla romance or if you're on a newer game version without compatibility patches.
💡 Beginner Tips
- Make sure you have SMAPI installed, as this mod likely requires it to load custom dialogue.
- If dialogue doesn't appear, check that you're not running other mods that overwrite Sebastian's dialogue files.
- Back up your save before installing, just in case the yandere lines get too intense for your playthrough.
📊 Mod Details
- Game
- Stardew Valley Mods
- Author
- Isa
- Version
- 2.0.1
- Downloads
- 199,794
- Endorsements
- 9,270
- Category
- Dialogue
- Created
- 1/1/2020
- Updated
- 2/19/2021
🔗 Required By 3 Mods
These mods list this mod as a dependency.
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Stardew Valley Mods
Download from Nexus.
📖 Full step-by-step install guide for Stardew Valley →
Visit the official mod page for specific installation instructions for this mod.
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