- Project Reclaimer how to play: a standalone Halo 3 PC fan client with server browsing, Forge, and mods
- Requirement: Steam version of Halo: The Master Chief Collection with Halo 3 content installed
- No MCC launch needed: run the client directly; original game files are not modified
- Key features: up to 128-player matches, 16-player campaign co-op, dedicated servers
- Content handling: missing maps and mods download automatically when joining a server
What Project Reclaimer Is Before You Play
Project Reclaimer is an independent fan project for Halo 3 PC players and modders. It runs alongside your own Steam installation of Halo: The Master Chief Collection and provides a server browser, expanded Forge tools, mod support, multiplayer, and campaign co-op. It is not an official product of Microsoft, Xbox Game Studios, Halo Studios, or Bungie.
The project is currently in early development, and all downloads are published through the official releases page. The core experience breaks down into four playstyles:
| Playstyle | What You Do | Best For |
|---|---|---|
| Casual multiplayer | Browse servers, join matches up to 128 players | New players |
| Campaign co-op | Play Halo 3 missions with up to 16 players | Friend groups |
| Forge creator | Build custom maps with expanded objects and AI | Map makers |
| Server operator | Host persistent dedicated servers | Community hosts |
Standalone Client
- Launches directly, no MCC menu required
- Does not modify original game files
- Handles server browsing and content downloads
Community Project
- Free fan project, early development status
- Official Discord is the main support channel
- Active discussion on r/halo and r/halo3
You must own and install Halo: The Master Chief Collection on Steam, including the Halo 3 Campaign and/or Multiplayer content. Project Reclaimer does not provide game files.
How to Play Project Reclaimer: Step-by-Step Setup
Follow these steps to go from a fresh PC to your first match. The full official instructions are on the How to Play page.
Install Halo content on Steam
Install Halo: The Master Chief Collection through Steam, then make sure the Halo 3 Campaign and Halo 3 Multiplayer content you need is downloaded. Keep Steam installed on the same PC.
Download the Project Reclaimer client
Get the latest client release from the official releases page and extract it into its own dedicated folder, separate from your MCC installation directory.
Launch the standalone client
Start the client from its executable or shortcut. Allow network access when prompted and wait for the server list to load. You do not need to enter the MCC menu.
Set your nickname
Open profile or account settings, enter a recognizable player name, and save it. Friends and server administrators will identify you by this name.
Find and join a server
Filter the server browser by map, game type, version, or latency, pick a server with open slots, and join. Accept any content downloads the server requires, then wait for the session to load.
Place the client in a folder you can find easily. Future updates replace files in this directory, and keeping it separate from MCC avoids confusion during troubleshooting.
Using the Server Browser Effectively
The server browser is the heart of the Project Reclaimer experience. Each server entry exposes several pieces of information, and knowing how to read them saves time.
| Filter | What It Shows | Recommended Action |
|---|---|---|
| Map | Active multiplayer environment | Pick familiar maps or explore custom ones |
| Game Type | Active ruleset or custom mode | Review rules before joining |
| Version | Client compatibility info | Update client if versions mismatch |
| Mods | Custom maps, scripts, Forge content | Allow the client to download missing files |
| VPN | Connection path restrictions | Try a non-VPN connection if unreachable |
| Latency | Network response time | Prefer lower ping for responsive play |
You can also join friends through a shared server address or a Discord invitation when the server supports it. If a connection fails, check the VPN indicator and version filter first.
When a server uses mods you do not have, the client prompts you to download them, either from the server itself or through Steam Workshop. Confirm the download, let it finish, and reconnect if the server requests a restart.
Forge, Campaign Co-op, and Custom Modes
Once you can join servers, three creative and cooperative features define the deeper Project Reclaimer experience.
Expanded Forge
- Halo 3 AI placement in maps
- Frozen-object editing and larger builds
- STOCK, BUILT-IN, and MOD object sources
Campaign Co-op
- Solo, split-screen, or online play
- Up to 16 players per campaign session
- Mid-session joining and campaign mods
Scripted Modes
- Gun Game, Growth, One in the Chamber
- Zone Control and Flood Infection
- Megalo scripting and JSON configuration
For campaign sessions, choose the mission, difficulty, starting point, and any campaign modifiers before launch. All players need compatible content for modded sessions, and the host is responsible for reloading if a session enters an invalid state.
For Forge, a reliable workflow is: open the editor on a familiar map, build the main layout before decoration, save and reload to validate, then test with friends in the intended mode. Test AI routes and player escape paths separately from visual decoration.
Save before making major structural changes, and keep separate iterations when experimenting with layout overhauls. Reload the map before inviting players to confirm the saved version is the intended one.
Hosting Your Own Dedicated Server
If you want a persistent community server instead of joining public sessions, Project Reclaimer provides a dedicated server package and an RCON administration tool. Official instructions are on the Host a Dedicated Server page.
| Deployment | Focus | Difficulty |
|---|---|---|
| Windows | Manual install, local testing | Beginner |
| Windows Server | Persistent hosted machine | Intermediate |
| Linux Docker | Containerized, repeatable deployment | Advanced |
Core setup tasks include configuring ports and firewalls, placing maps and mods in the correct directories, setting administrator lists, enabling anti-cheat, and using RCON for remote management with a strong password.
Dedicated Server Essentials:
- Forward required ports through firewall and router
- Place maps and mods in the correct directories
- Configure administrators and anti-cheat
- Enable automatic restart and log capture
- Secure RCON access with a strong password
Restrict RCON access to trusted networks and administrators only, and maintain a ban list for disruptive players before opening your server to the public.
First-Session Checklist and FAQ
Before your first long play session, confirm you have covered the essentials:
Ready to Play:
- MCC and Halo 3 content installed on Steam
- Latest Project Reclaimer client downloaded
- Nickname set and saved
- Server browser filters understood
- Discord joined for updates and support
Q: Do I need to launch Halo: The Master Chief Collection to play Project Reclaimer?
No. Project Reclaimer runs as an independent client. You need MCC installed on Steam for its game files, but you launch Project Reclaimer directly and never enter the MCC menu. The original game files are not modified.
Q: How do I play Project Reclaimer with mods I don't have installed?
When you join a server that uses unknown mods, the client prompts you to download the required files from the server or through Steam Workshop. Accept the download, wait for installation, and reconnect if the server requests it.
Q: How many players can play together?
Multiplayer sessions support up to 128 players, and Halo 3 campaign co-op supports up to 16 players. Dedicated servers offer up to 127 player slots.
Q: Is Project Reclaimer free and official?
It is a free independent fan project in early development. It is not affiliated with Microsoft, Xbox Game Studios, Halo Studios, or Bungie. Get releases only from the official project pages and join the official Discord for support.
Install the client, set your name, filter the browser, and jump in. For Forge creation, campaign mods, or server hosting, explore the dedicated sections of this wiki for deeper walkthroughs.