Mods / Halo3

• HHalo 3 The Wacky Covenantby 76561198417014698Play on normal or easy, heroic and legendary is not wort it because of balancing not trying to be cursed edition or anything, just a low effort mod with some model swaps and some high effort content. Main diference betwen cursed edition and this is that cursed edition modified halo stuff to make...6.7k downloadsupdated 3 y ago
• LLord Hood Boy's Goldmine Campaignby SpidermanmanThe Goldmine Campaign is a thematic overhaul mod for Halo 3. Can be played SOLO or COOP (up to 4 players). SUMMER UPDATE _______________________________________ Inspired by Lord Hood's voice actor, this mod asks the question what if you brought Hellboy into the Halo Universe to replace the charac...6.7k downloadsupdated 14 mo ago
• OOperation Whiteout | An Avalanche AI Warby III AVIATOR IIIOperation Whiteout | An Avalanche AI Battle *Mod updated with compatibility for the September 17th, 2025 MCC patch.* "While the Master Chief was headed to High Charity's remnants to retrieve Cortana, the last remaining members of Truth's forces have flocked to the new Halo in search of a refuge....6.7k downloadsupdated 5 mo ago
• BBadlands AI Battlefield | Endless Halo 3 AI Warby III AVIATOR III“All out war has broken out in one of the Ark's arid wastelands. Keep your preferred heavy weapon handy. Large scale AI combat on a fresh locale that's bound to please!” *Mod fully updated to function with the September 17th, 2025 patch of Halo: MCC. Welcome to my next AI War project. It has been...6.2k downloadsupdated 14 mo ago
• Tthe covenant - Campaign Forgeby 76561198417014698forge in campaign for halo 3, but only for The Covenant IMPORTANT forging for final section is screwed up, from third tower to the ending, placing forge objects is only possible at the final hornets section, placing anything will result in the player being sent to oblivion. I do not recommend pla...6.1k downloadsupdated 3 y ago
• HHalo Friendly Editionby The Winter WolfThis mod adds more variety of Allies and some Enemies to the campaign to improve the experience The separatist faction of the covenant will help and will be present more often in the vast majority of missions that includes (Grunts) (Elites) (Jackals) (Hunters) Before playing this mod you should k...6.1k downloadsupdated 13 mo ago
• SSanctuaryby NeckzillaThis is the original Halo 2 map reimagined for Halo 3. Enjoy Sanctuary in higher fidelity and in the artystyle of Halo 3.5.9k downloadsupdated 14 mo ago
• HHalo 2 Map Pack for Halo 3by BlackandfanThis is a small collection of all my ported Halo 2 maps. Included are: - Waterworks - Burial Mounds - Containment - Anchor Point - Colossus - Backwash - Convergence Check out this workshop item for more wip maps Credits: - byzantineisroman for his tracking rocket launche and dual wielding needler...5.9k downloadsupdated 13 mo ago
• RResuscitationby Aerial DaveResuscitation is a recreation of Coagulation from Halo 2, brought into Halo 3. It is meant to be as faithful as possible to the original, while updating the visuals, and incorporating Halo 3 sandbox elements.5.8k downloadsupdated 7 mo ago
• TThresholdby 76561199068277244In orbit around the immense gas giant planet Threshold, in the Soell system.. Lies an area know as the "Exclusion Zone".. Where remnants of "The Holy Ring", once known as Installation 04, can be found.. Now, a large and hazardous debris field is all that remains.. Your squad has been sent to gath...5.7k downloadsupdated 14 mo ago
• FFrontier - Halo Wars Inspired Battlefieldby 76561198371658834This map is inspired by the map Frontier from Halo Wars 2. While it is no where even close to being an exact replica, it takes many ideas from it. This mod includes a ton of custom made vehicles from Halo Wars or other Halo games. It is recommended you play with a large lobby. Some of the content...5.6k downloadsupdated 3 y ago
• HHalo 3 ODST: Last Standby GabThis mod let's you experience Halo 3 campaign through the eyes of a seasoned ODST. Core Features -1st-Person ODST View: Play through the entire original Halo 3 campaign with the height, vulnerability, and perspective of a human ODST trooper. -Master Chief AI: Fight alongside a fully functional, A...5.6k downloadsupdated 4 mo ago
• HHalo Shapeshifter Edition IIIby The Winter WolfThis mod was made to play cooperatively, some levels can be hard alone! You will take the role of a shapeshifter, each level will change shape and adapt to both an enemy and an ally form but in Halo 3 Before playing this mod you should know ... - If you play cooperatively, your companions will ad...5.5k downloadsupdated 13 mo ago
• Tthe storm - Campaign Forgeby 76561198417014698forge in campaign for halo 3, but only for The storm IMPORTANT to play on UNSC team, be on green team. player can use elites, but they don't have all animations, so they hold some weapons incorrectly and can't use some vehicles at all. game might DURING SCARAB FIGHT Key Combos melee + zoom = ai i...5.4k downloadsupdated 2 y ago
• HHalo 3 Matchmaking Backgroundby 76561198330463364Original Halo 3 Matchmaking Background for MCC. How to use: Open MCC settings -> Video -> Configure Backgrounds -> Matchmaking Background and select Halo 3 Matchmaking from the bottom of the list and save. With the new MCC update, you need to have Menu Music volume set to at least 1 to hear the b...5.3k downloadsupdated 3 y ago
• FFloodbound - A Halo 3 AI Warby III AVIATOR III"In an arctic wasteland with sub zero temps, a remote Covenant outpost and its garrison have no idea of the horrors that await them. The cold will be the least of your worries." *Mod updated to be fully compatible with the September 17th, 2025 patch of the MCC.* My final map of 2023 is finally he...5.3k downloadsupdated 14 mo ago
• TThe Tower of Treachery - Custom Campaign Missionby SkorlyThe Master Chief must shut down a Forerunner defense tower. Can the Master Chief find the very convenient shut-down-all-defenses switch, or will The Covenant stop him before he gets close? This is actually on of the first missions I started working on when the Halo 3 Mod tools came out, but it ha...5.2k downloadsupdated 3 y ago
• HHalo 3 NPC Weapon Randomzier (and Other Wacky Things)by YetiIt's all fun and games until the 2 inch grunt with the sniper rifle shows up. (yes this mod works with the new update) The main feature of this mod is the weapon randomizer. Every enemy and other npc will get a random weapon (sometimes a few). This can lead to some very challenging encounters. Th...5.2k downloadsupdated 20 mo ago
• TThe Edge of Peril Remasteredby NaughtyScottyMy first Halo 3 mod taken to new heights, now with an entire second act. The original first half has been fully remastered as well with all of the knowledge I've gained from the last 2 years of creating Campaigns for Halo 3. Enjoy the cinematics as the snow falls, and beautiful or epic music acco...5.0k downloadsupdated 13 mo ago
• HHalo 3: What If? (Beta Version)by BeerMcDrinkyWhat if you got to experience Halo 3 in a different way? What if Chief never upgraded to Mark VI? What if Thel' never became the Arbiter of the Covenant? This mod brings back old weapons from Halo: CE and Halo 2, Cut Squads, Vehicles, Character redesigns and much More! A few changes include: - Ma...5.0k downloadsupdated 8 mo ago
• HHalo 3 Revampby N8endoThis campaign is a showcase for Remastered CE Covenant, Marcus Lehto's Mark V, and Brute Revamp v2. It also includes several other mods in an attempt to build the best version of Halo 3 I could make. Here's a list of included mods and who made them: - Remastered CE Covenant - Jordan Spartain and...4.9k downloadsupdated 14 mo ago
• DDesolate December - Custom Campaign Missionby Mglogo/Jordanisgreat(PLEASE READ BEFORE YOU PLAY) You need to get out of the falcon at the start when it stops moving. There are hidden secrets in the map so have fun hunting for them! This mod is balanced for easy and normal diffuculty The sun rises over the poles of harvest and so does tensions at the start of the...4.8k downloadsupdated 7 mo ago
• LLockoutby NeckzillaThis is the original Halo 2 Lockout as you remember it, with updated with visuals so it fits Halo 3. Enjoy! My next maps will be Warlock (soonish) and Beaver Creek. All with updated visuals to match Halo 3's.4.7k downloadsupdated 14 mo ago
• DDynamisby killzone64A Covenant hydropower facility continues to function despite sub-zero temperatures freezing most of the equipment. 4-12 players. Special thanks to Fritzster and ShmeeGrim for help with weapon placement and wrangling the Halo 3 spawn system. Thanks to Ludus for assistance with UV and texture work.4.6k downloadsupdated 1 mo ago
• PParadise Panic - Custom Campaign Missionby Mglogo/JordanisgreatOn the planet zenohazaku a UNSC research stronghold is being invaded by the banished. The banished seek to steal the resources that the UNSC have stocked up here. The zenohazaku national navy is tasked with taking back the now captured stronghold and to drive the banished back into orbit! But the...4.6k downloadsupdated 20 mo ago
• AAtlas (H3)by 76561198844071994I have nothing to do with the "Fragmented Gamer" / "ONI XT" YouTube videos pushing this as a remaster and using generative AI slop for the thumbnails. The only "AI" used in the process of making this mod is chaiNNer, which I used to upscale a handful of textures (primarily bump maps). My mod is n...4.4k downloadsupdated 6 mo ago
• RResident Evil 4 - Villageby Glitch5970Resident Evil 4 - Village ported to Halo 3 (Osmund Saddler is used as a custom playermodel!) Some textures from the RE4 HD project If you guys want me to port any other RE4 maps to a specific Halo game and/or have any issues with this map feel free to let me know!4.4k downloadsupdated 3 y ago
• EEcho Ops (Season 1)by HyokinFace off against the Storm Covenant under the command of the Didact! Version 3.034.3k downloadsupdated 3 mo ago
• BBattle For The Cartographerby NaughtyScottyFight to reclaim The Ark! Covenant forces have retaken the Cartographer, you and a team of ground and air forces will be the first to storm the installation. We are also tracking unknown movement in the area. Keep an eye out. Many new features, weapons, vehicles and more for the first time seen i...4.1k downloadsupdated 13 mo ago
• FForerunner Forest - Custom Campaign Missionby 76561198417014698Play on heroic. Basicly Guardian forest, but not focused on the guardian but a litle more focused on the events that are hapening on the ark while the master chief is in high charity. this mission is part of a much bigger mod proyect by me, I no longer see a reason of why to upload them all at on...4.1k downloadsupdated 20 mo ago
• BBefore The Frost | Episode 1by NaughtyScottyThe UNSC is fractured and so is your memory. Lucky for them, the Masterchief always comes through. Move out, find your team and regroup. Along the way just maybe you can piece together how you ended up in the situation you find yourself... This is Episode one of a two episode Campaign Features: W...4.1k downloadsupdated 13 mo ago
• Ttsavo highway - Campaign Forgeby 76561198417014698forge for the campaign mission "tsavo highway" IMPORTANT to play on UNSC team, be on green team. player can use elites, but they don't have all animations, so they hold some weapons incorrectly and can't use some vehicles at all. Key Combos melee + zoom = ai ignore player melee + jump + grenade t...4.0k downloadsupdated 3 y ago
• HHalo 3 Marine Editionby Marshall the oneHalo 3 as a marine This mod supports 4 player coop and let's you ride passenger on troop hogs and the tank. Also grenade work fine now and all weapons are usable even turrets, although they slow you down a lot. All weapons are in third person. I added dual wielding for most weapons even some that...4.0k downloadsupdated 3 mo ago
• HHalo 3 Bungie Introby 76561198330463364Halo 3 Bungie/MGS intro upscaled for MCC. MCC background customization doesn't support intro videos so you need to manually replace the video file. 100% safe to use with anticheat. Install: 1. After the download is ready, go to steam\steamapps\workshop\content\976730\2898898652 2. Copy FMS_logo_m...4.0k downloadsupdated 3 y ago
• HHalo 3 "Realism" Rebalanceby ThornierlambExperience the Legendary Halo 3 campaign with a more "realistic"/lore accurate approach to the gameplay! PSA ONLY HEROIC DIFFICULTY WITH NO SKULLS IS BALANCED!! THIS IS INTENDED TO BE A UNIFIED EXPERIENCE Feedback is appreciated! HOW TO INSTALL: Simply subscribe on the workshop page and launch th...4.0k downloadsupdated 12 mo ago
• BBattle For Ontario - Custom Campaign Missionby Mglogo/JordanisgreatThis mod is part of my custom halo campaign Halo Xerographic Tranquility Look at the collection if you want to play the previous missions (full campagin will be compiled into one mod once its done) ---------------------------------------------------------------------------------------------------...4.0k downloadsupdated 20 mo ago
• WWarlockby NeckzillaHalo 2 Warlock is now back with upgraded visuals to match Halo 3. Like Lockout and Sanctuary, the idea was to bring Halo 2's Warlock to Halo 3 while maintaining all of the original jumps and sightlines of the original map. For you trick jumpers you might even find some new jumps and shortcuts aro...3.9k downloadsupdated 14 mo ago
• VValhalla MP Simulator | Endless AI Warby III AVIATOR III“The next evolution of my AI multiplayer sim has arrived, bigger and better than ever before!” Sometime after I completed my Narrows MP Sim mod, I wanted to take the experience up a notch. After considering a number of options, I settled on designing a MP sim experience with a BTB vibe on the ico...3.8k downloadsupdated 3 mo ago
• HHalo 3 Citadel Endless AI Battleby 76561198381261086A Halo 3 modded map with endless AI battles in the multiplayer map Citadel. Team up with the UNSC and fight both the Covenant and Flood, or instead join the Covenant and try to overthrow your enemies in this small but grand endless battle. Features: - Endless AI battle with playable UNSC (Blue Te...3.8k downloadsupdated 20 mo ago
• HHalo 3 Early/Cut Mapsby 76561198397976830Halo 3 Early/Cut Maps This is a collection of all the early/cut maps for Halo 3. These maps are found within the Halo 3: ODST Editing Kit, most of the maps listed here were being worked on around the time that ODST was forked from Halo 3. There were 2 other maps "beavercreek" and "sanctuary" whic...3.7k downloadsupdated 14 mo ago
• Ssierra 117 - Campaign Forgeby 76561198417014698forge in campaign for halo 3, but only for the first level, sierra 117 IMPORTANT to play on unsc team, be on green team. player can use elites, but they don´t have all animations so they hold some weapons incorrectly and can´t use some vehicles at all. Key Combos melee + zoom = ai ignore player m...3.7k downloadsupdated 3 y ago
• FFallen Harbor Remasteredby NaughtyScottySilence fills the air as you wait, the attack is coming. This base is a key command center in your fight against the covenant, they want it. Only you are capable enough to defend it. Help is on the way but you must keep the covenant at bay. Play through Fallen Harbor remastered. A Custom Campaign...3.6k downloadsupdated 13 mo ago
• Aavalanche - Custom Campaign Missionby 76561198417014698this mod is a mission for my custom campaign, but while i am fixing other levels and creating new ones, this is like the demo of it. you play as a zealot elite during the battle of the ark. changes: players have active camo players have stronger shields friendly phantom has a detailed interior wr...3.6k downloadsupdated 17 mo ago
• CCity Under Siegeby Mglogo/JordanisgreatThis mod is part of my custom halo campaign Halo Xerographic Tranquility Look at the collection if you want to play the previous missions (full campagin will be compiled into one mod once its done) After crashing from escaping the tropical areas of secluded sunset. You must fight the banished. Th...3.5k downloadsupdated 9 mo ago
• RRemember Reach - Halo 3 Multiplayer Packby RynoZealot, Tempest, Battle Canyon, and Ridgeline have been ported into Halo 3. All gametypes are supported but not tested, and Forge is available except for Ridgeline which is currently bugged. Original sounds and effects from Reach are brought to these maps. Zealot features the zero gravity area. R...3.5k downloadsupdated 13 mo ago
• SSkorly's Vanilla Map Packby SkorlyAll the maps I've made so far with vanilla weapons and enemies.3.3k downloadsupdated 2 y ago
• RResurrection Revamp 3.0by FunnyAnywayPLEASE READ~ The Ark mission please TURN YOUR GAMMA TO 5.7 as stated at the start of the mission. MCC makes the mission much darker than I created it. 5.7 gamma is the actual lighting from the engine. You can turn it as high as you want if needed. Make sure it is just gamma NOT UI gamma as that i...3.3k downloadsupdated 3 mo ago
• HHelljumpers - SparklingLakeby Mglogo/JordanisgreatMISSION OBJECTIVE ------------------------- In the year 2541. Helljumpers are sent behind enemy lines to Verdura Terrene, A covenant owned world. On it is the Sparkling Lake, An Area where the covenant has 2 aircraft carriers. They have torn apart our recon teams. Destroy both timat magnapinna ca...3.3k downloadsupdated 20 mo ago

409 halo3 mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.