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Claudia is a mini launcher for the Assassin's Creed Brotherhood Multiplayer, made by siohaza on Discord & GitHub.

It hooks into ACBMP.exe to:

• Redirect Ubisoft multiplayer endpoints to community-maintained services without requiring hosts file modification
• Allow custom login credentials
• Improve controller compatibility on modern systems by forcing XInput over legacy DInput (DirectInput)
• Optimize/Fix CPU affinity for smoother performance

For more information, check out its repository:
Claudia on GitHub

The Ubi Orbit API is part of Ubisoft's online services layer and digital rights management (DRM) for several titles. After Assassin's Creed Brotherhood's Multiplayer, it was also used to authenticate players and exchange credentials with the game servers.

Orbit, an emulator by koteykaby on GitHub, allows to launch supported multiplayers with custom login credentials. For more information, check out its repository: Orbit on GitHub

Animus Launcher is an advanced mini launcher for Assassin's Creed Multiplayer titles, made by iassassintv. It currently supports Brotherhood, Revelations and III.

Unlike Claudia, it does not inject into the game executables and is used to:

• Work along with Claudia for Brotherhood and uses its capabilities
• Download required manifest/multiplayer files from the Animus Network (derived from Steam and Ubisoft Connect builds, may include some changes in order to play)
• Use custom login credentials along with Claudia or the Orbit emulator
• Connect to the Animus Network VPN (SoftEther) using Windows built-in VPN: SSTP on Windows 8 and later, or L2TP on Windows 7. For Linux it uses the network-manager-sstp plugin
• Point Ubisoft services at community endpoints by updating the system hosts file
• Provides additional launcher and/or game settings

All changes made during launcher or gameplay sessions are automatically reverted once you exit the game or close the launcher, ensuring your system remains unchanged. This includes the VPN configuration (unless you are on Linux), applying modified versions of original game files, and updating the hosts file (unless you set to keep the modification) for community service redirection.

Assassin's Creed Multiplayer titles rely on peer-to-peer connections, and the implementation of STUN, TURN, and relay servers by Ubisoft has not yet been fully understood. Additionally, peer-to-peer connectivity is heavily affected by NAT types, which can introduce further complications. Using a VPN helps bypass these limitations, providing a more stable and reliable way to play.

Disabling the anti-cheat in Assassin's Creed Brotherhood is required because some players may not be able to enable it, and players who keep it enabled can only join sessions with other players who also have it enabled.

Additionally, it can cause other issues and there is no practical benefit when keeping it enabled, since PunkBuster is effectively useless here. If you are wondering why it still needs to be installed, it's included in case we decide to use it in the future.

After Brotherhood, Assassin's Creed Multiplayer titles don't offer an option to disable it, which is why PunkBuster installations are mandatory there.

The Animus Launcher should automatically connect to the VPN upon launch. If it fails to connect, try the following:

1. Make sure your system is disconnected from any other VPN or proxy service
2. Check if your system can establish the connection:
   1. Open Powershell
   2. Execute the following command:
      Test-NetConnection vpn.animusnetwork.com -port 443
   3. RemoteAddress must point to 141.147.0.245, otherwise your DNS is resolving incorrectly
   4. If TcpTestSucceeded returns False, your router or ISP may be blocking outbound connections on TCP port 443
3. Check if your Windows firewall or any other is blocking the outbound connection
4. Reset your VPN & Proxy network adapters:
   1. Open Device Manager
   2. Go to View > Show hidden devices
   3. Right-click and uninstall all VPN/Proxy adapters
      (especially WAN Miniport (...) adapters)
   4. If prompted, also remove the drivers by checking the checkbox
   5. Restart your computer allowing Windows to reinstall the adapters
5. Start the Animus Launcher and retry connecting to the VPN

The launcher resolves hostnames using DNS over HTTPS (DoH). That means DNS lookups are sent through regular HTTPS requests instead of plain DNS, which makes them harder to block or tamper with.

It tries Cloudflare first, and falls back to Google if that fails using these URLs:

• https://cloudflare-dns.com/dns-query?name=<hostname>
• https://dns.google/resolve?name=<hostname>

To test whether those are accessible by your system/network, replace <hostname> with the actual hostname, for example animusnetwork.com, then open both in your browser. A working response should load as JSON instead of timing out or showing a browser error.

If either request fails, try disabling VPNs or proxies, checking whether your network blocks DNS-over-HTTPS traffic, flushing your local DNS cache, temporarily disabling security software that inspects HTTPS traffic, or trying the launcher from another network.

In case you cannot resolve that issue, you can set Server inside the Animus Launcher to the server's IP address instead.

For Animus Network it is: 141.147.0.245

The Assassin's Creed Multiplayers may fail to start due to missing runtime components which they require:

• Microsoft Visual C++ Redistributables (x86 & x64):
  2005, 2008, 2010, 2012, 2013, and v14
• DirectX End-User Runtime

To resolve these issues:

1. Uninstall all installed versions of the
   Microsoft Visual C++ Redistributables by:
   1. Opening the Control Panel
   2. Navigating to Programs > Programs and Features
   3. Uninstalling all Microsoft Visual C++ Redistributables
   4. Restarting your system
2. Reinstall all Microsoft Visual C++ Redistributables
   (x86 & x64) from our bundle
3. (Re)install the DirectX End-User Runtime
4. Try launching the game again

In Assassin's Creed Brotherhood, it usually show up messages such as:

• "Connection to Assassin's Creed®: Brotherhood server lost. The game will now exit."
• "The sign-in has failed! Verify your installation and Internet access."

While in Assassin's Creed Revelations, it results into a timeout, exits completely and looks like a crash.

There are 3 main things to check:

• The status of the Assassin's Creed Multiplayer servers, which can be found on the Status page.
• Checking your credentials carefully, even if you assume that they are correct. Additionally, usernames are case sensitive, so make sure the capitalization is exactly right!
• Making sure that no firewall, your router, or ISP is blocking HTTP/TCP port 80 traffic over WAN. The AC multiplayers request the so called Online Config Service running on the server, which returns the actual game server endpoints.

If you cannot get past that HTTP block across WAN, you can try setting Server inside the Animus Launcher to the server IP inside the VPN which is: 172.29.240.2

Since Assassin's Creed Brotherhood and Assassin's Creed Revelations use the older DInput controller system, while modern controllers rely on XInput, triggers or controller detections may not function correctly. In this case, Claudia forces the game to use XInput. However, Claudia only supports Assassin's Creed Brotherhood. For Assassin's Creed Revelations, please follow the PadForge setup guide at the bottom of the Setup page.

You can recover your account using the Forgot Credentials feature on the login page. You'll receive an email containing your username and instructions to reset your password.