The Halo PC Update That Never Was

Chimera brings Halo: Combat Evolved PC into the modern era with 60+ bug fixes, visual enhancements, object interpolation, and extensive customization options.

Get Started View Features

chimera_fov 90v

chimera_show_fps true

chimera_interpolate true

chimera_widescreen_fix 1

Get Started in Minutes

Install Chimera and start experiencing Halo PC like never before

Download Chimera

Get the latest release from the GitHub releases page. Download strings.dll, chimera.ini, and the fonts folder.

Install to your Halo folder

Copy the files to your Halo PC installation directory (the main game folder, NOT the controls folder). Back up your original strings.dll first by renaming it to strings-old.dll.

# Your Halo folder should look like this:
C:\Program Files (x86)\Microsoft Games\Halo\
├── strings.dll         # Chimera
├── chimera.ini         # Configuration
├── fonts/              # Font files
└── halo.exe            # Game executable

Launch and configure

Start Halo PC normally. Chimera loads automatically. Press the tilde key (~) to open the console and start customizing with Chimera commands.

Try these commands

chimera_fov 90v              # Set field of view to 90 degrees (vertical)
chimera_show_fps true        # Display FPS counter
chimera_block_mouse_acceleration true  # Disable mouse acceleration
chimera_widescreen_fix 1     # Fix widescreen HUD scaling

Explore Features

Discover what makes Chimera the essential mod for Halo PC

Interpolation

Smooth object movement beyond 30 FPS with advanced interpolation

Bug Fixes

60+ fixes for PC port issues including descope, FOV, and shaders

Visual Enhancements

Restored Xbox-accurate rendering and high-resolution improvements

Custom Chat

Enhanced chat system replacing Keystone’s broken implementation

Map Support

Custom Edition maps on retail and compressed map support

Lua Scripting

Extend Chimera with custom scripts and event handlers

Configuration & Commands

Customize every aspect of your Halo experience

INI Settings

Configure Chimera through chimera.ini

Video Settings

Resolution, refresh rate, and visual options

Controller Support

Full gamepad configuration with aim assist

Visual Commands

FOV, widescreen fixes, and display tweaks

Gameplay Commands

Spectator mode, teleport, and dev tools

Network Commands

Server bookmarks and connection tools

Advanced Topics

Take your Chimera experience to the next level

Lua Scripting Guide

Create custom scripts to extend Chimera with new features and automation

Learn more

Compressed Maps

Use zstd compression to drastically reduce map file sizes

Learn more

Build from Source

Compile Chimera yourself using MinGW-w64 toolchain

Learn more

FAQ & Troubleshooting

Common questions and solutions for installation and compatibility issues

Learn more

Ready to enhance your Halo experience?

Install Chimera now and discover the definitive way to play Halo: Combat Evolved on PC.

Install Chimera