🔧 Mod Guide · Updated 2026

Summertime Saga
Mod Installation Guide

Install mods correctly on Android and PC. Fix conflicts, version mismatches, and file placement errors before they break your save.

✍️ By Ryan Cole 🕒 Updated March 2026 📱 Android & PC ⏱ 7 min read

Before Installing Any Mod Important

Mods modify core game files. Taking a few precautions first prevents hours of troubleshooting later.

  1. Back up your save files — On PC these are in %appdata%/RenPy/SummertimeSaga. Copy this folder somewhere safe before making any changes.

  2. Match mod version to game version — Every mod specifies which game version it supports. Using the wrong version is the leading cause of crashes and black screens.

  3. Install one mod at a time — Add mods one by one and test after each. This makes conflicts easy to identify and remove.

  4. Download from verified sources — Only use mods linked from trusted fan sites. Modified APKs from unknown sources can contain harmful software.

⚠️ Always start a new save slot after installing mods. Loading an existing save with incompatible mods active frequently causes corruption.

Installing Mods on Windows PC

PC mod installation uses the Ren'Py mod folder structure. Follow these steps exactly to avoid file placement errors.

  1. Download the mod — Get the correct version from a trusted source. The mod file will be a .zip or .rpa file.

  2. Navigate to your game folder — Open the Summertime Saga directory you extracted when installing the game.

  3. Open the game subfolder — Inside the main game directory, find the game/ folder. Create a mods/ folder inside it if one does not exist.

  4. Place mod files — Copy the .rpa mod file into game/mods/. Never place mod files in the root game folder.

  5. Launch and verify — Start the game. The mod should load automatically. Check the mod menu if one is provided.

For a fully illustrated walkthrough of the PC mod folder structure, see the PC mod install guide .

If you want a broader view of how everything connects during gameplay, you can also follow the full progression here: view walkthrough .

Installing Mods on Android

Android mods for Summertime Saga are distributed as pre-patched APK files rather than separate mod files.

  1. Uninstall the vanilla version — The standard APK and modded APK share the same package ID. You must remove the original before installing the modded version.

  2. Back up your save — Android saves are stored in the app data folder. Use a file manager to copy the save folder before uninstalling.

  3. Download the modded APK — Get the correct modded APK version from a verified source. Check that it matches your previous game version.

  4. Enable Unknown Sources — Go to Settings → Security → enable Unknown Sources or grant permission to your file manager app.

  5. Install the modded APK — Tap the APK file and confirm installation. Restore your save files if needed after the first launch.

Common Mod Errors & Fixes

⚠ Game crashes on launch
Version mismatch. Check the mod page for the exact game version it supports and match it.
⚠ Mod not loading
File placed in wrong folder. Confirm the .rpa file is inside game/mods/ not the root folder.
⚠ Black screen after mod
Remove the mod, clear game cache, and reinstall. Then add the mod back using the correct folder path.
⚠ Mod conflict
Remove all mods and add back one at a time. Two mods editing the same script file will always conflict.
⚠ Save file corrupt
Restore from your pre-mod backup. Always back up saves before installing or removing mods.

More error fixes are documented in the mod error fix guide at summersagahub.com.

Related Guides

PC Mod GuideFull illustrated walkthrough
Mod Error FixesAll known mod issues
Base Install GuideInstall without mods first

Frequently Asked Questions

Where do I put mod files on PC?
Mod files go inside the game folder under game/mods/. Create the mods folder if it does not exist. Never place mod files directly in the root game directory.
Why does the game crash after installing a mod?
Crashes after mod installation are almost always caused by a version mismatch. Check that your mod version exactly matches your game build version.
Can I install mods on Android?
Yes. Android mods come as pre-patched APK files. Uninstall the original game first, then install the modded APK using the standard Unknown Sources method.
How do I fix a mod conflict?
Remove all mods and add them back one at a time. Most conflicts happen when two mods edit the same game script file — identify which pair causes the conflict and remove one.