- Project Reclaimer download gives you a standalone Halo 3 PC client — no MCC launcher needed
- Three downloads exist: the player client, dedicated server package, and RCON admin tool
- MCC required: you must own Halo 3 content on Steam before playing
- No file modification: Project Reclaimer runs alongside your existing installation
- Early development: expect frequent updates and occasional breaking changes
Project Reclaimer Download: What You Get
Project Reclaimer is a standalone fan project for Halo 3 PC players and modders. It runs on top of your own Steam installation of Halo: The Master Chief Collection and provides a server browser, expanded Forge, automatic mod downloads, multiplayer with up to 128 players, and campaign co-op with up to 16 players. It is not an official product of Microsoft, Xbox Game Studios, Halo Studios, or Bungie.
There are three separate downloads, each aimed at a different audience. Picking the right one is the first decision you need to make.
Client (Players)
- Standalone game launcher
- Server browser and joining
- Automatic mod downloads
- Best for: playing online
Dedicated Server
- Persistent hosting package
- Up to 127 server slots
- Custom maps and modes
- Best for: server operators
RCON Tool
- Remote administration
- Manage players and sessions
- Execute server commands
- Best for: administrators
Only download Project Reclaimer from the official release page on GitHub (ProjectReclaimer/project-reclaimer-releases) or the official website at projectreclaimer.dev. Third-party mirrors are not verified and may distribute tampered files.
System Requirements Before You Download
Before running any installer, confirm your setup matches the baseline requirements. Project Reclaimer depends on the MCC installation rather than replacing it.
| Requirement | Details | Notes |
|---|---|---|
| Base game | Steam version of Halo: MCC | Must be owned and installed |
| Halo 3 content | Campaign and/or Multiplayer installed | Depends on sessions you join |
| OS | Windows PC capable of running MCC | Console versions not supported |
| Network | Internet access for downloads and servers | Required for online play |
| Storage | Separate folder for the client | Keep apart from MCC files |
Extract the Project Reclaimer client into its own dedicated directory. Keeping it separate from your MCC installation makes updates cleaner and avoids accidental file conflicts.
Step-by-Step Installation Guide
Follow this sequence to get from a fresh download to your first multiplayer session. The whole setup usually takes under 30 minutes once MCC is installed.
Install Halo content on Steam
Install Halo: The Master Chief Collection through Steam, then make sure the Halo 3 Campaign and/or Multiplayer content you need is downloaded on the same PC Project Reclaimer will run on.
Download the latest Project Reclaimer release
Get the current client from the official GitHub releases page and place it in a dedicated folder separate from your MCC installation directory.
Launch the standalone client
Start Project Reclaimer directly from its executable. You do not need to open the MCC launcher or enter the MCC in-game menu first.
Set your nickname
Open the profile or account settings, enter a recognizable player name, and save it before joining any server.
Find and join a server
Use the server browser to filter by map, game type, version, or latency, pick a session with an open slot, and join. Missing server content downloads automatically when prompted.
Project Reclaimer works with your existing Halo installation and does not rewrite or replace the original game files. You can keep Steam signed in and switch back to regular MCC whenever you want.
Download Comparison: Which Build Do You Need?
Use this comparison to confirm you are downloading the correct build for your role in the community.
| Build | Audience | Primary Use | Key Capability |
|---|---|---|---|
| Client | Players | Browse and join servers | Server browser + auto mod download |
| Dedicated Server | Hosts | Persistent multiplayer hosting | Up to 127 slots, custom content |
| RCON Tool | Admins | Remote server management | Kick, ban, change maps remotely |
| Server Browser Filter | What It Shows | Recommended Action |
|---|---|---|
| Map | Active multiplayer environment | Filter for familiar or custom maps |
| Game Type | Ruleset or scripted mode | Review rules before joining |
| Version | Client compatibility | Update client when required |
| Latency | Network response time | Prefer low-latency servers |
| Mods | Custom content in use | Allow auto-download when prompted |
Many communities share server addresses through Discord. Open the shared connection details and use them with the Project Reclaimer client to join the same session as your friends.
Pre-Launch Checklist
Before Your First Session:
- Halo: MCC installed on Steam with Halo 3 content
- Latest Project Reclaimer client downloaded to its own folder
- Nickname set and saved in profile settings
- Firewall and network access allowed for the client
- Server browser loads and a compatible session is visible
Project Reclaimer is in active early development. Server compatibility can change between releases, so check the official release notes on GitHub and the project Discord before reporting connection issues.
FAQ
Q: Is the Project Reclaimer download free?
Yes, the Project Reclaimer client is a free fan project. However, you must already own the Steam version of Halo: The Master Chief Collection with the Halo 3 content you want to play, since Project Reclaimer runs on top of that installation.
Q: Where is the official Project Reclaimer download page?
The official releases are published on the ProjectReclaimer GitHub releases page, with guides and links available on the official website at projectreclaimer.dev. Avoid third-party mirrors, as they are not verified by the project.
Q: Do I need to open Halo: The Master Chief Collection to play?
No. Project Reclaimer is a standalone client launched directly from its own executable. You do not need to enter the MCC menu, and the original game files are not modified.
Q: What happens if a server uses mods I don't have?
When you join a server that requires custom maps, campaign content, or mode scripts you lack, the client prompts you to download the missing files automatically. Steam Workshop is also supported as a distribution channel for supported content.