The real-time combat mod for Baldur’s Gate 3 is what people mean when they say “a mod can make a game feel new.” Polygon’s writeup called it a brand-new game; the Nexus page has climbed past 400,000 downloads. But installing a mod like that safely (and without breaking co-op saves) is not click-and-play. Here are the seven best apps for Baldur’s Gate 3 mods we use on Windows, Mac, and Steam Deck, tested against Patch 8’s official mod manager.
What to look for in a BG3 mod tool
- Support for Larian’s official mod support (added in Patch 7)
- Load-order management, since many BG3 mods conflict silently
- Support for the Nexus Mods API for one-click installs
- Script Extender awareness for mods that need runtime patching
- Multiplayer sanity: does the tool warn when a mod breaks host/client parity
- Cross-platform behavior: Windows, macOS, Linux via Proton
- Backup and restore so you can roll back a broken install
Quick comparison
| App | Best for | Cost | Platforms | Uses Nexus |
|---|---|---|---|---|
| BG3 Mod Manager | Load-order for advanced modders | Free, open source | Windows, Linux (via Wine) | Manual |
| Vortex | General-purpose Nexus manager | Free | Windows, Linux (via Proton) | Yes |
| Nexus Mods app | Newer Nexus one-click manager | Free | Windows, macOS | Yes |
| BG3 Script Extender | Runtime for mods that need code hooks | Free, open source | Windows | N/A |
| BG3 Modder’s Multitool | Editing PAK/LSF/LSX asset files | Free, open source | Windows | N/A |
| ImprovedUI + Community Library | UI framework mods need | Free | Windows | Nexus |
| In-game Mod Manager | Official Larian in-game store | Bundled with the game | Windows, macOS, Linux, PS5, Xbox | No |
1. BG3 Mod Manager – Best for load-order-heavy setups
BG3 Mod Manager by LaughingLeader is the community-standard load-order tool. It reads your Baldur’s Gate 3 install directory, imports .pak mod files, and lets you drag-drop the order Larian’s engine reads them in. Critical when two mods edit the same file.
Where it falls short: Windows-first; runs on Linux via Wine but with occasional path quirks. Manual mod installs (no Nexus API).
Pricing:
- Free, MIT license
- No premium tier
Platforms: Windows, Linux via Wine, macOS via Wine/Crossover
Download: GitHub | Nexus Mods
Bottom line: Install first if you plan to use more than two mods at once.
2. Vortex – Best all-purpose Nexus mod manager
Vortex is Nexus Mods’ cross-game mod manager. It supports BG3, along with dozens of other games. One-click installs, automatic conflict detection, and profile support. Slightly heavier than dedicated tools but pays off if you mod multiple games.
Where it falls short: Load order for BG3 specifically is less precise than BG3 Mod Manager. Some BG3 mods still recommend manual .pak placement.
Pricing:
- Free, GPL-3
- Nexus Premium subscription ($54.99/yr) speeds downloads
Platforms: Windows (native), Linux (via Proton or Bottles)
Download: Nexus Mods | GitHub
Bottom line: Best pick if you mod multiple games and want one tool for all of them.
3. Nexus Mods app – Best modern one-click installer
Nexus Mods app is the newer, native Nexus client that replaces Vortex for games it supports. Native macOS build, cleaner UI, faster installs. BG3 is on the supported list.
Where it falls short: Younger than Vortex; some Vortex-only features (custom conflict rules) have not landed yet. Linux support is still preview.
Pricing:
- Free with a Nexus account
- Nexus Premium subscription optional for faster downloads
Platforms: Windows, macOS, Linux (beta)
Download: Nexus Mods app
Bottom line: Best pick for macOS users and anyone who wants the modern Nexus UI.
4. BG3 Script Extender – Best for mods that need runtime hooks
BG3 Script Extender by Norbyte is the runtime patcher that lets Lua-based mods hook into game systems without waiting for Larian’s script update cycle. Many advanced combat, class, and UI mods list it as a hard requirement.
Where it falls short: Only Windows. Script Extender can lag one to three days behind a fresh BG3 patch, during which some mods break. Not needed for pure asset mods.
Pricing:
- Free, MIT license
Platforms: Windows
Download: GitHub
Bottom line: Install as a dependency; do not install as a standalone mod.
5. BG3 Modder’s Multitool – Best for mod builders
BG3 Modder’s Multitool is the community reverse-engineering tool for extracting Larian’s PAK archives, editing LSX/LSF metadata, and repacking mods for distribution. If you plan to make a mod rather than just install one, this is the tool.
Where it falls short: Steep learning curve. Windows only. Requires the Larian Studios’ LSLib as a dependency.
Pricing:
- Free, open source
Platforms: Windows
Download: GitHub
Bottom line: For creators, not players.
6. ImprovedUI + Community Library – Best UI foundation
ImprovedUI and its sibling Community Library are the two mods almost every other UI mod depends on. Install them before installing anything that touches the character sheet, quickbar, spellbook, or inventory. They are less “apps” than shared infrastructure.
Where it falls short: Sometimes rush a couple of days behind a major patch, causing UI mods to break. That is the trade-off for their scope.
Pricing:
- Free, MIT license
Platforms: Windows, macOS, Linux (all via BG3 Mod Manager or Nexus)
Download: Nexus Mods - ImprovedUI | Nexus Mods - Community Library
Bottom line: Install as a dependency the moment you install any UI mod.
7. In-game Mod Manager – Best for a first mod
Larian’s in-game Mod Manager launched with Patch 7 and is the safest way to install your first mod. Curated selection, guaranteed multiplayer parity if the host and client both have the same mods, and updates atomically with your save.
Where it falls short: Only surfaces curated mods. Most advanced tools (mesh replacers, class overhauls) are not there yet. Slower to reflect new Nexus releases.
Pricing:
- Free, bundled with the base game
Platforms: Windows, macOS, Linux, PlayStation 5, Xbox Series X/S
Download: In-game menu → Mods
Bottom line: Where every new modder should start; graduate to Nexus once you know what you want.
How to pick the right one
- If you have never modded BG3 before: In-game Mod Manager
- If you want a couple of Nexus mods with minimal friction: Vortex or Nexus Mods app
- If you plan a heavy modlist with UI, class, and rules changes: BG3 Mod Manager plus Script Extender plus ImprovedUI
- If you want to install BG3 mods on macOS: Nexus Mods app
- If you want to install BG3 mods on Steam Deck: the in-game Mod Manager, or Vortex through Bottles
- If you are building mods: BG3 Modder’s Multitool
FAQ
What is the best free BG3 mod manager? BG3 Mod Manager for advanced modding, Vortex for beginners who want Nexus integration, and Larian’s in-game Mod Manager for the safest first-mod experience. All three are free.
Does modding disable achievements or break saves? Larian confirmed that mods installed through the in-game Mod Manager do not disable achievements. Nexus mods installed manually or through Vortex may. Always back up your save folder before installing a mod that changes classes, races, or the core rules.
Can I mod BG3 on Steam Deck? Yes. Larian’s in-game Mod Manager works natively on Deck. For Nexus mods, install Vortex or the Nexus Mods app through Bottles, then point them at your Proton BG3 prefix.
Does the real-time combat mod work in multiplayer? No. Real-time combat mods require every player in the party to have the mod installed with the same configuration. Even then, some encounters may desync. Save often.
Is the Script Extender safe? Yes, on Windows. It is a widely used community project maintained since Divinity: Original Sin 2. Anti-cheat is not a factor in single-player BG3. Only install from the official GitHub release page to avoid re-uploads with bundled malware.
