Game Mod Loaders
Alternatives to MelonLoader
{"intro": "MelonLoader is a free loader for Unity games built with either Mono or Il2Cpp. It loads mods and plugins through injection, supports dependency handling and load-order control, and keeps logs in the game’s installation directory. Debug mode is intended for developing and debugging MelonLoader, plugins, and mods. Installation can follow an installer guide or use a release archive manually. Windows, Linux, macOS, and Android are covered, although Android and Oculus Quest support is work in progress. Il2Cpp games require the .NET 6.0 Desktop Runtime, installed automatically on Windows.\n\nReaders may prefer a narrower tool when a game has a dedicated loader, scripting environment, or mod framework. Platform scope also differs: some alternatives target one game, while others omit Android or macOS. Compare whether the alternative supports your game and store, how it loads or manages mods, what developer facilities it provides, and which prerequisites apply. A switch can trade MelonLoader’s broad Unity coverage for game-specific integration, built-in update or dependency handling, scripting APIs, or a different installation model.", "rows": [{"ref": "sw:smapi", "name": "SMAPI", "best_for": "Stardew Valley players wanting integrated mod tools", "pricing": "Free plan", "key_difference": "SMAPI targets Stardew Valley and adds configuration, performance work, build attestation, and malicious-file detection rather than general Unity loading.", "choose_when": "Choose it when you need Stardew Valley 1.6.14+ support, achievement compatibility, and SMAPI’s game-specific tools."}, {"ref": "sw:satisfactory-mod-loader", "name": "Satisfactory Mod Loader", "best_for": "Satisfactory multiplayer modding", "pricing": "Free plan", "key_difference": "Satisfactory Mod Loader is built for Satisfactory, with Unreal Blueprint or C++ mods, manager integration, and no external network connections.", "choose_when": "Choose it when multiplayer-focused Satisfactory mod loading, dependency installation, and repository malware testing matter more than Unity coverage."}, {"ref": "sw:bepinex", "name": "BepInEx", "best_for": "Multi-engine Unity and .NET plugin frameworks", "pricing": "Free plan", "key_difference": "BepInEx covers Unity Mono, IL2CPP, and several .NET game frameworks, with configuration, logging, and runtime or in-memory patching.", "choose_when": "Choose it when your game fits its supported engines and you want drop-in installation or patching beyond MelonLoader’s Unity scope."}, {"ref": "sw:everest", "name": "Everest", "best_for": "Celeste mod packs and code-driven content", "pricing": "Free plan", "key_difference": "Everest is a Celeste-specific API with map, texture, dialogue, campaign, and code mods plus an in-game updater and dependency downloader.", "choose_when": "Choose it when you need Celeste store support, vanilla switching, and content-focused modding without altering original files."}, {"ref": "sw:modtek", "name": "ModTek", "best_for": "BattleTech mods with DLC and ordered dependencies", "pricing": "Open source", "key_difference": "ModTek targets HBS BattleTech, dynamically loads mod.json packages, resolves dependencies, and adds DLC support missing from the built-in loader.", "choose_when": "Choose it when BattleTech Steam or GOG mods need self-contained files, enforced load order, and newer DLC support."}, {"ref": "sw:mwse", "name": "MWSE", "best_for": "Advanced Morrowind Lua mod scripting", "pricing": "Free plan", "key_difference": "MWSE extends Morrowind scripting with unsandboxed Lua, broad event hooks, native code support, crash dumps, and a higher mod limit.", "choose_when": "Choose it when Morrowind mods need event-driven Lua or native modules and you can install its required companion tools."}, {"ref": "sw:baldur-s-gate-3-script-extender", "name": "Baldur's Gate 3 Script Extender", "best_for": "Baldur’s Gate 3 Lua and Osiris scripting", "pricing": "Free plan", "key_difference": "The Script Extender targets Baldur’s Gate 3 with separate client/server Lua states, console commands, debuggers, logs, and auto-updates.", "choose_when": "Choose it when BG3 mods need Lua or Osiris scripting, configurable diagnostics, achievement re-enabling, or automatic extender updates."}]}
- 01 BepInEx
BepInEx suits people modding supported games or developing game plugins.
Free plan Open source Windows · macOS · Linux · API9.0 Visit Specs - 02 Baldur's Gate 3 Script Extender
The Script Extender is for Baldur's Gate 3 mod creators who want Lua or Osiris scripting support and related debugging or logging options.
Free plan Open source Windows · Linux · API8.9 Visit Specs - 03 Satisfactory Mod Loader
It suits Satisfactory players and mod developers using Windows clients or servers, or Linux servers.
Free plan Windows · Linux8.2 Visit Specs - 04 RED4ext
RED4ext suits Cyberpunk 2077 mod developers working on Windows who need scripting access and plugin loading.
Free plan Windows8.1 Visit Specs - 05 ScriptHookVDotNet
It suits Windows PC players and developers creating Grand Theft Auto V Story Mode scripts with .NET rather than C++.
Free plan Windows8.1 Visit Specs - 06 Cyber Engine Tweaks
Cyber Engine Tweaks is for Cyberpunk 2077 modders who want to write Lua scripts or use the included mod and developer tools.
Free plan Windows · Linux8.0 Visit Specs - 07
Everest Everest suits Celeste players who want custom maps, visual or audio changes, and code mods, as well as creators building that content.
Windows · macOS · Linux · API7.9 Visit Specs - 08 Fallout 4 Script Extender (F4SE)
It suits Fallout 4 modders working on Windows with Steam or GOG releases.
Free plan Windows7.8 Visit Specs - 09 Hollow Knight Modding API
This is for Hollow Knight players who need a compatibility layer for mods, and developers building Hollow Knight mods.
Free plan Windows · macOS · Linux7.8 Visit Specs - 10 ModTek
ModTek suits BattleTech players who want to load compatible mods and modders working with JSON or DLL mods.
Free plan Windows · macOS · Linux7.7 Visit Specs - 11 MWSE
MWSE is for Morrowind mod authors who want Lua event hooks or scripting functions beyond the Construction Set.
Free plan Windows · Linux7.7 Visit Specs - 12
SMAPI SMAPI suits Stardew Valley players who want to load and organize mods, and creators who need modding documentation or source code.
Free plan Windows · macOS · Linux · Android7.7 Visit Specs - 13 CLEO Windows · iOS7.6 Visit Specs
- 14 Hell2Modding
It suits Hades II players who want to use mods and developers creating them.
Free plan Windows · macOS7.6 Visit Specs - 15 xOBSE
xOBSE suits Oblivion modders who want expanded scripting and plugin support.
Free plan Windows · Linux7.6 Visit Specs - 16 Sonic Free plan Linux · Self-hosted7.4 Visit Specs
- 17 Northstar Windows · Linux7.3 Visit Specs
- 18 REDmod Free plan Windows7.3 Visit Specs
- 19 Starfield Script Extender
SFSE suits Windows players who own the Steam edition of Starfield and need additional scripting or plugin support.
Free plan Windows7.2 Visit Specs - 20 Ultimate ASI Loader
It is intended for game modders loading ASI plugins into supported Windows games.
Free plan Windows7.2 Visit Specs - 21 Venice Unleashed
It suits Battlefield 3 owners interested in community servers, custom modes, maps, or filming and competitions.
Free plan Windows · Linux7.2 Visit Specs - 22 UE4SS Windows7.0 Visit Specs
- 23 xNVSE Windows6.4 Visit Specs
- 24 Unity
Unity suits Java Edition players seeking a vanilla-focused resource pack with a traditional look and subtle visual changes.
6.2 Visit Specs - 25 Hades Mod Importer Windows · macOS5.9 Visit Specs
MelonLoader, head to head
- MelonLoader vs BepInEx
- MelonLoader vs Baldur's Gate 3 Script Extender
- MelonLoader vs Satisfactory Mod Loader
- MelonLoader vs RED4ext
- MelonLoader vs ScriptHookVDotNet
- MelonLoader vs Cyber Engine Tweaks
- MelonLoader vs Everest
- MelonLoader vs Fallout 4 Script Extender (F4SE)
- MelonLoader vs Hollow Knight Modding API
- MelonLoader vs ModTek
- MelonLoader vs MWSE
- MelonLoader vs SMAPI