Downloads

SUMMARY: A small, tight-corridor-style deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Chamber.zip" somewhere on your PC. Open the "MI_Chamber" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

38 downloads, 0 reviews, 8 screenshots

SUMMARY: A large-sized deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Inferno.zip" somewhere on your PC. Open the "MI_Inferno" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

40 downloads, 0 reviews, 9 screenshots

SUMMARY: A medium-sized deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Oasis.zip" somewhere on your PC. Open the "MI_Oasis" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

48 downloads, 0 reviews, 5 screenshots

SUMMARY: A small, simple deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "M2_Junction.zip" somewhere on your PC. Open the "M2_Junction" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon 2: Durandal" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

56 downloads, 0 reviews, 7 screenshots

SUMMARY: A large-sized deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "M2_Rebound.zip" somewhere on your PC. Open the "M2_Rebound" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon 2: Durandal" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

76 downloads, 0 reviews, 8 screenshots

SUMMARY: A large, maze-like deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "M2_Pneumatic_Atrophy.zip" somewhere on your PC. Open the "M2_Pneumatic_Atrophy" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon 2: Durandal" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

78 downloads, 0 reviews, 8 screenshots

SUMMARY: A simple, medium-sized deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "M2_High_Sanctum.zip" somewhere on your PC. Open the "M2_High_Sanctum" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon 2: Durandal" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

94 downloads, 0 reviews, 5 screenshots

SUMMARY: A simple, small-medium deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "M2_Pillars_of_Time.zip" somewhere on your PC. Open the "M2_Pillars_of_Time" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon 2: Durandal" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

130 downloads, 0 reviews, 5 screenshots

SUMMARY: A large deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Dirge.zip" somewhere on your PC. Open the "MI_Dirge" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

256 downloads, 0 reviews, 5 screenshots

SUMMARY: A small, very simple deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Epitome.zip" somewhere on your PC. Open the "MI_Epitome" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

266 downloads, 0 reviews, 5 screenshots

SUMMARY: A small, very simple deathmatch/survival map designed for netplay & the XBLA Survival Plugin.

INSTALL INSTRUCTIONS: After download, extract "MI_Convergence.zip" somewhere on your PC. Open the "MI_Convergence" folder & read the "ReadMe" file for full instructions.

Tested on Latest "Aleph One" build with latest "Marathon Infinity" data files.

XBLA Survival Plugin can be found here: https://simplici7y.com/items/xbla-survival-2/

240 downloads, 0 reviews, 5 screenshots

[2025-09-23] NEW MEGA-SCENARIO RELEASED! Introducing Marathon: Extraction Shooter (You Snost, You Lost). In this fully soundtracked and terminaled 256-level hub-based NEFX scenario for Bungie Software's Marathon/Aleph One, grab as many items as possible and survive as long as possible in a series of deathscapes.

Released on 09/23/25, the original planned release date for Bungie’s official new (extraction shooter) Marathon game before it got delayed. Sorry Bungie, you snost, you lost!

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UPLOAD INTRODUCTION AND UPDATE TIMELINE BELOW

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NEFX loves you.

NEFX has been prolifically producing great Marathon/Aleph One inventions since 2017 (around 2.5 years after being founded) and uploading them to Simplici7y, in an increasing number of different upload pages that NEFX then frequently updates. This has occasionally lead to crowding of Simplici7y's front page with several different NEFX uploads, sometimes over a relatively short period. Understandably, some have objected to this as unfairly outcrowding and burying the wonderful contributions of our fellow travelers. We hear them. Therefore, to better serve the community as well as our Total Carnage Comrades, NEFX is now consolidating all additions and updates to its Marathon and Aleph One-related inventions on Simplici7y here on this one upload page, with a datemarked update timeline you can view below. Henceforth, all Marathon/Aleph One scenarios, campaigns, maps, mods, etc, and any updates to them, will be posted here. Of course, the webpage link connects to NEFX's Internet Archive homepage, where you can find all inventions by titled category. This includes:

NEFX Marathon Mods (i.e. physics files and Lua scripts for netplay)

NEFX Marathon Infinity Netmaps

NEFX Marathon Solomaps for others' scenarios, including the soundtracked 50-level pack for Aleph One: Wheels!

NEFX Marathon Mapmaking Templates for Weland

NEFX Marathon: Machina -- The Alien Machine Mind

NEFX Marathon: Keyfinder -- The Doomed Myth of Destiny's Halo

NEFX Marathon: Sucks

NEFX Marathon: Rules -- The Infinite Recombinations to the Way

NEFX Marathon: Pathsifter -- The Facing of the Legion Within

NEFX Marathon: Underrealm -- The Confronting of the Forgetting

NEFX Marathon: Colorguard -- The Grimmest Myriad Mirror

NEFX Marathon: Colorwash -- The Wresting of the Tides

NEFX Marathon: Ultramega Extreme Golfmaster Dinosaur Egg Championship Super Bowl 5000 3D -- The Quest

NEFX Marathon: BOBJam -- The Tranquil Chaos of Crowded Escape

NEFX Marathon: Revelation -- The Brutal Path to Knowing

NEFX Marathon: Nampa

NEFX Marathon: Encyclopedia -- The Rise of Bad Take Jake

NEFX Marathon: Corn Maze -- The Forced Wisdom of the Walls

NEFX Marathon: Shadervoid -- The Labywraths of Growth

NEFX Marathon: Green (You Snooze, You Lose)

NEFX Marathon: 52 Pickup

Thanks, everyone. We are glad to share this space with you.

Happy Carnage,

-xXOIOXx

Update timeline:

[2025-09-23] NEW MEGA-SCENARIO RELEASED! Introducing Marathon: Extraction Shooter (You Snost, You Lost). In this fully soundtracked and terminaled 256-level hub-based NEFX scenario for Bungie Software's Marathon/Aleph One, grab as many items as possible and survive as long as possible in a series of deathscapes.

Released on 09/23/25, the original planned release date for Bungie’s official new (extraction shooter) Marathon game before it got delayed. Sorry Bungie, you snost, you lost!

[2025-03-20] A new Marathon: Keyfinder map was added, "NEFX - Elegance Emerging Through Application of Bases". This can be downloaded individually or with other files in the Marathon: Keyfinder section at the link.

Notes for version 2025-09-23:

2025-09-23: NEW MEGA-SCENARIO RELEASED! Introducing Marathon: Extraction Shooter (You Snost, You Lost). In this fully soundtracked and terminaled 256-level hub-based NEFX scenario for Bungie Software's Marathon/Aleph One, grab as many items as possible and survive as long as possible in a series of deathscapes.

Released on 09/23/25, the original planned release date for Bungie’s official new (extraction shooter) Marathon game before it got delayed. Sorry Bungie, you snost, you lost!

3,606 downloads, 1 review, 1 screenshot, 1.0 rating

In celebration of the 30th anniversary of Marathon 2's release, this is a 28-level scenario using the same story of the original game and similar constraints, blending together classic and modern level design styles to make an exciting revisit to Lh'owon.

Made by aperturegrillz, BaudrillardBoy, cassis, future you, hypersleep, Kovacs#2398, MurgenROfF, RyokoTK, and windbreaker.

Notes for version v1.0.1.1:

This is the actual fix for the evil spawn point problem.

3,062 downloads, 4 reviews, 8 screenshots, 5.0 rating

Demo

1,352 downloads, 0 reviews, 0 screenshots

Welcome to The BOB Factory version 1.0.1 !

Those friendly little BOBs have been kidnapped by the Pfhor for experimental purposes! After being sacked by Durandal and friends a few hundred years ago, the Pfhor Empire has almost reached it's former glory, save for one small detail...what to do about Earth and all those superhuman space marines. So those wily aliens built The BOB Factory. There they plan to develop a new type of assimilated BOB, one that is indistinguishable from normal humans and doesn't say silly things to give itself away. If they reach Earth, those assimilateds would wreak total havoc. This is where you step in and save the day...Space Marine.

Notes for version 1.0.1:

The map consists of 3 levels

Version 1.0.1 fixes the terms & pattern buffers -- making the terms look like terms and the pattern buffers look like pattern buffers.

1,352 downloads, 0 reviews, 0 screenshots

After all, what is a metastable AI but an electric god?

You've been sent by Durandal to assist a UESC assault on the Vylae homeworld. As Pfhor resistance crumbles, a strange discovery offers new opportunities... and new perils.

A mini-scenario for Marathon Infinity. Eight levels, plus one interstitial and one secret bonus level.

Notes for version 1.2:

Notable changes in v1.2:

• Added chapter screens
• Added bookend levels (Before Top Dead Center and All Farewells Are Sudden)
• Fixed issues with respawning Super Troopers and chip insertion on Atom Heart Mother
• Tweaked story throughout to give more context for player actions and set up Part 3 (Coming Soon!)
• Fixed miscellaneous bugs and typos throughout

5,090 downloads, 5 reviews, 6 screenshots, 3.8 rating

This is a demo/proof of concept release for an OPEN-TO-EVERYONE COMMUNITY MAPPING PROJECT, Durandal Done Different. Inspired by community projects for Doom, such as Doom The Way Id Did, DDD is a celebration of the original game, its limitations, quirks and strengths.

The end goal of this project is to recreate, in the "style" of the original game, the entire 28-level campaign for Marathon 2. This isn't strictly speaking remakes of the original levels, but just a different interpretation of the writing and story beats as if it were 1995 all over again.

This 3-level demo features my replacements for Waterloo Waterpark, Slings and Arrows, and What About Bob. They're meant as a demonstration of the project's objective.

You are welcome to contribute! A direct link to the Discord for development of this project is in the text file of this download, or you can ask me for it on the main Marathon discord. Or you can just play the 3 maps included and wait patiently for the final release, sometime in the heavens...

1,638 downloads, 3 reviews, 4 screenshots, 5.0 rating

This is a three level campaign textured for Marathon 2. After the events of Marathon 2, Robert Blake and his BoBs escape on the captured Pfhor ship H'farl, but they run into trouble when their navigation system malfunctions in an unknown star system! Help Robert Blake and the heroic BoBs get to safety.

Notes for version 1:

Initial Upload

1,468 downloads, 1 review, 6 screenshots, 4.0 rating

A full scenario for Marathon Infinity. It is a 6 level breach and infiltrate mission into a Pfhor military compound, complete with new terminal and chapter arts, as well as some interesting old school mapping tricks and fun bits.

This version of the scenario was updated to Marathon Infinity (textures and refinements). If you want to play this scenario in Marathon 2, it is highly recommended you grab the other archive (specifically for M2), or many textures just won't look right on things.

Notes for version v2.0:

Final version for Siege of Nor'Korh.

1,510 downloads, 0 reviews, 6 screenshots

This is a map I made in college, ages ago. Heavily inspired by certain moments from the Rubicon solo campaign, but with its own unique twists.

This level is designed to be severely punishing, but absolutely doable with a sound strategy. There are ambushes. There are turret puzzles. There are times you'll have to run for your life.

One word of advice - you're not meant to fight every juggernaut. You can still try if you want to :)

Notes for version 1.0:

The first and so far only build.

1,078 downloads, 0 reviews, 0 screenshots