Stardew Valley Modding on OpenMods

A modding scene with a culture of its own

Stardew Valley has a modding community unlike most. ConcernedApe shipped a deliberately small game in 2016 and then spent years quietly improving it, and the community filled in the rest — turning a one-developer farming sim into one of the longest-lived modded games on PC. There are mods that add 100+ hours of new story content, mods that rebalance every economy curve, and mods that do nothing except make the cat sleep on a different chair.

If you're new to Stardew modding, three things are worth understanding before you install anything.

SMAPI is the foundation — install it first

Stardew Valley itself has no modding API. The community wrote one: SMAPI (Stardew Modding API), maintained by Pathoschild. Almost every code mod runs through SMAPI, and almost every "drop the file in Mods/" tutorial you'll find assumes you have it installed.

Install path:

Download SMAPI from the official site. Don't grab it from a third-party mirror.
Run the installer — it auto-detects your Stardew install (Steam, GOG, Xbox Game Pass for PC) and replaces the launch shortcut so SMAPI starts with the game.
The first time you run the patched shortcut, SMAPI creates a Mods/ folder next to the game executable. That's where everything goes.

SMAPI is required for C# code mods. If a mod's download is a .dll, it's a SMAPI mod. If it's a folder containing manifest.json and a content.json, it's a Content Patcher mod (still requires SMAPI, plus Content Patcher itself as a dependency).

Content Patcher does the heavy lifting for visual and content mods

The other piece of the stack is Content Patcher, also by Pathoschild. It lets mods edit any game asset — character portraits, dialogue, maps, event scripts — without shipping a replacement of the entire file. Mods that recolor sprites, swap NPC outfits seasonally, or add new dialogue lines almost always run through Content Patcher.

You install it like any other SMAPI mod: extract the folder into Mods/. From then on, any mod that declares ContentPatcher as a dependency will hook into it automatically. The combination of SMAPI + Content Patcher + Generic Mod Config Menu (a small UI mod that gives every other mod an in-game settings screen) is the de-facto baseline — most published mods assume you have all three.

What you'll find on OpenMods

Most Stardew mods historically live on Nexus Mods and ModDrop. The OpenMods catalogue is smaller and skews toward mods whose authors publish directly to GitHub — which tends to mean technical mods rather than content packs: framework extensions, quality-of-life tweaks, dev tooling, and translation layers. Browse the catalogue below to see what's currently on OpenMods.

If you're a mod author publishing to GitHub already, connecting your repo to OpenMods is a five-minute setup and gives you a download endpoint, release tracking, and a public mod page without changing your existing workflow.

A few practical notes

SMAPI version compatibility matters. Stardew Valley 1.6 changed the modding API significantly. If you're playing on 1.6 and a mod hasn't been updated since 2024, check the README before installing.
Save backups are free and trivial. Stardew saves live in %AppData%\StardewValley\Saves\ on Windows and ~/.config/StardewValley/Saves/ on Linux/macOS. Copy the folder before installing a major content mod — uninstalling a content mod from a save mid-playthrough can leave dangling references.
Multiplayer with mods works, but everyone needs the same mods. SMAPI enforces this; trying to join a modded host without the matching mods will be politely refused.

Stardew's strength is that the community is collaborative rather than competitive. The big content mods cross-reference each other, the framework authors coordinate breaking changes through SMAPI's deprecation system, and most authors are responsive when you file a GitHub issue. If you're picking a first game to learn modding on, you'd struggle to find a friendlier one.