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[Credit to Windbreaker for the title.] "Until they've searched thoroughly, one can never be clean." In this scenario, you get to spend a bunch of time cleaning up a space of its filth balls with your trusty Yucatan Suckaman™ vacuum cleaner. But watch where you step, and be sure to empty the bag often so the vacuum cleaner doesn't explode!

Notes for version 2023-09-22:

Today I added four new maps: "The Fine-Combed Route Logic", "Questiongarden Homunculi", "A Monument to Arcanomics", and "Infinitely Stretching Ramparts of Rumination". These can be downloaded individually or with other maps or the scenario itself at the provided link.

380 downloads, 0 reviews, 5 screenshots

In this Aleph One Marathon scenario shell by NEFX, survive as long as you can and rack up as much time and score as you can fighting against intensifying waves of Pathways Into Darkness enemies with Pathways Into Darkness weapons. Like with Marathon: Machina, every level is open-ended, and there is nothing particularly won or lost except your competition with yourself and anyone else who dares to take on the Underrealm challenge and share their exploits. Good luck, endless fighter! There may well be more levels to come to be experienced in any order desired.

20 downloads, 0 reviews, 2 screenshots

In this new NEFX scenario shell for Marathon Aleph One, travel around a corn maze to get to the exit without a map. If you try to use a map, you'll die, because that's cheating. So really use your navigational skills, prowess, memory, etc. You'll become a better person if you persevere through this.

58 downloads, 0 reviews, 1 screenshot

In this NEFX scenario shell, trawl through insane winding structures fighting humanoid enemies using the same weapons as you in order to retrieve chips.

112 downloads, 0 reviews, 1 screenshot

In this latest NEFX shell to be added to map-wise over time, you accidentally teleport into a messy, long-abandoned, and now-infested storage complex run by an AI who has gotten imaginative in isolation but who is thwarted in progress and needs someone to retrieve missing keys amidst a great mess in order to both grow unabated and help you escape. All maps in this scenario shall be Retrieval missions.

Notes for version 2023-08-16:

I added a new map, "NEFX - Dawned Age First Sight and Strike". You can download it and other maps either individually or together at the provided link.

545 downloads, 0 reviews, 4 screenshots

In this new NEFX scenario shell for Marathon Aleph One, you're a pedestrian trying to get past a crowd of other pedestrians to get to the exit, in part by yelling and shoving. But no one can die, so be patient, persevering, and careful about where, when, and how you shove and yell.

Notes for version 2023-08-10:

A new map has been added today, "Beyond the Subconscious Paradigm of Mercenary".

108 downloads, 1 review, 1 screenshot, 5.0 rating

In this NEFX shell based on Pathways Into Darkness, you've probed too deeply into matters unknown and found yourself in the forbidden zone, at the mercy of a once-dormant deity ordering your retrieval of diamonds to escape.

Notes for version -- newest map addition 2023-07-25:

I added a separate Pathsifter map called "The Abrasion at the Horizon Boundary". You can get this map and others along with the scenario folder itself at the provided link.

391 downloads, 1 review, 5 screenshots, 5.0 rating

[PLEASE READ BELOW]

In the latest multimedia dispatch from NEFX, spend time stuck in a mad one's dimension trying to attain the most amount of glory in the most amount of time before the current iteration of your condemned (blessed?) soul is snuffed. In the cracks, drink of all the details of the strange essence you've stumbled into. More levels and optional files (i.e textures) may be added across updates (note also the extra maps folder with one map in it).

IMPORTANT NOTE: You will need to toggle the included (and modded) Survival script to play this scenario. I got Hopper's permission for its use -- just ask him. Thanks, Hopper!

New sounds come from Hollywood, sundry YouTube, SWB Audio Capture, and Cythera by Ambrosia Software.

Notes for version -- newest map addition 2023-07-25:

I added a separate map called "Permachthon Autocraft - Eternal Passage" in April.

768 downloads, 3 reviews, 1 screenshot, 5.0 rating

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. Six levels, plus one interstitial and one secret bonus level.

Notes for version 1.1:

Notable changes in v1.1:

• Rebalanced ammo and shield chargers throughout scenario to provide a smoother difficulty curve and encourage exploration/aggression.
• Embedded MML+Lua (no longer requires Previous AI plugin)
• Substantially revised Atom Heart Mother (more climactic battles in central portion) and Our Lord Debussy (more to explore in upper floors, more connections between different areas of level).
• Removed potential Cask-of-Amontillado-esque soft lock in Sic Transit Gloria Mundi.
• Added a secret bonus level! Getting there is half the challenge.
• More weapon pickups on more levels, for those that prefer pistol starts (or just missed the weapon the first time around).
• Tweaks and aesthetic improvements to all levels.

I'm always looking to hone my craft as a mapper -- reviews, suggestions, &c are greatly appreciated. Special thanks to hypersleep for feedback on v1.0 and help with Lua!

2,764 downloads, 4 reviews, 3 screenshots, 3.8 rating

Marathon: Istoria is a single-player RPG scenario set in the Marathon universe and designed for the Aleph One engine. It pushes the engine to its limits by using advanced character progression, combat, and storytelling.

Customize your character by choosing from seven different player classes, each with their own unique active and passive abilities. Decide which conventional weapons you want to specialize in, and make use of a brand new arsenal of spells. Explore Istoria while discovering its secrets and how you fit in the world through a combination of terminals and communicating with the recently deceased. Istoria features an original soundtrack by Jon Irons.

Notes for version 1.0:

• Initial release.

321 downloads, 5 reviews, 6 screenshots, 5.0 rating

Eternal is one of the largest scenarios ever created for Aleph One, initially created by Forrest Cameranesi (Pfhorrest) and subsequently revised and expanded by a massive team known as the Xeventh Project, which, as of this writing (February 2023) now includes more than 40 people. Besides Tempus Irae, it may be the oldest scenario still being actively developed; it was first released in 2004 and has been refined and expanded almost continuously ever since. Features include, but are hardly limited to:

• 52 levels, some revisiting familiar locations from the Marathon trilogy and some being among the largest ever created for the engine
• An intricately layered plot featuring dense political and philosophical themes, a tragic romance, time travel, major events from Marathon’s backstory, complex original characters, and returning faces from the Marathon trilogy’s cast
• A huge, acclaimed soundtrack containing some fifty tracks, lasting more than six hours, and created by some thirteen composers and arrangers (significantly expanded in 1.3 previews 4 and 5)
• Redesigns of most of the game’s familiar cast (new in 1.3), some old foes from Pathways into Darkness, and some new faces (some new in 1.3)
• Hundreds of gorgeous terminal images (many added for 1.3 preview 4)
• Five texture sets, encompassing 650 high-resolution textures, 12 detailed original landscape textures, and several separate human and alien environments
• A secret tracking system (new in 1.3 preview 4)
• More than 360 sounds, remixed or remastered in CD quality, in stereo where possible (new in 1.3)
• Atmospheric weather like rain and snow (new in 1.3)
• A “quicksave on level transition” feature (new in 1.3)
• A final boss battle of sorts (new in 1.3)
• Detailed documentation including illustrated field guides to Eternal’s weaponry, aliens, and humans, detailed credits, a meta-history of Eternal, and technical notes on how its maps and scripts work (new in 1.3)

The current development release, 1.3 preview 5 (released on 2023-02-08), is perfectly playable despite still being incomplete; it is now our recommended way to play the game. We’ll refrain from estimating the release date of 1.3 final, as we’ve overshot too many estimates to count (thank you, feature creep). The current “stable” build, 1.2.1 (released on 2021-11-07), is missing several features listed above but is still an enjoyable game in its own right.

The screenshots seen on the right are from a development release from between 1.3 previews 4 and 5 and are a reasonable reflection of Eternal’s current appearance. Although they were taken on Normal (so as to show more monster types), we do recommend playing Eternal on the highest difficulty you can manage.

Notes for version 1.3 preview 5:

Current development release. 1.3 incorporates several new features, many detailed above. New in 1.3 preview 5:

• Fixes to several major bugs, including crashes in six different levels, the HUD messing up in non-16:9 aspect ratios, and problems in network games with the secret counter and map overlay.
• Over an hour of new/updated music since preview 4.
• New secrets in a few levels.
• Jjaro sludge is no longer coloured like M1’s toxic Pfhor goo.

689 downloads, 2 reviews, 5 screenshots, 5.0 rating

Apotheosis X is a total conversion featuring 24 massive levels of carnage brought to life with entirely reimagined sprites and textures, high frame rate animations, 16 bit audio and an original soundtrack.

The campaign features engaging combat that scales with player skill and aggression, with a roster of new enemies and weaponry that complements the original games' nuance and high skill ceiling.

Notes for version 1.1:

Key updates for 1.1:

• Sound effects are louder and punchier, with more variety.
• The player's arsenal is more powerful, with many adjustments that make it more effective on total carnage.
• Additional saves, items and resources throughout the campaign.
• Weapon and item pickups are more visible.
• Numerous bug fixes, including the removal of 2 soft locks.
• Numerous small updates to level designs.
• Included PDF manual with a weapon manifest and additional backstory.

An extensive list of updates is available in the download.

2,373 downloads, 12 reviews, 13 screenshots, 4.3 rating

In this latest Marathon content shell from NEFX, a once-promising new sector of Nampa, Idaho has gone to shit along with its possibly clone-based citizenry, and you're caught in it. Escape?

Thanks to Alex Scobell for those "Earth" textures! He made them like 20 years ago when he was 10 and they never really got used, but he offered me to make something with them, so I made this. :3

323 downloads, 0 reviews, 2 screenshots

An entire soundtracked 50-level pack by NEFX for the 1998 Marathon-engine-based game Wheels! by RJ Cooper. Much thanks to the original Wheels! creators and to W'rkncacnter/Douchetower for help with the bundling. To play:

1. Copy the Wheels! files into the directory.

2. Open the graphics/shapes file in ShapeFusion and apply the contained shapes patch to it.

3. Put Aleph One in the directory and launch it.

4. Stop.

5. Bend.

6. Lean.

7. Kiss ass goodbye.

276 downloads, 1 review, 5 screenshots, 5.0 rating

This fixes the issues from the original 2019 upload, meaning it doesn't have anyone else's plugin or any version of Aleph One in it. This was a joke made in response to Meerjel01's proposed scenario Marathon: Green. It's an extermination level, so return to the starting platform after killing everything. In the meantime, deal with all the green.

Notes for version 2:

Doesn't have anyone else's plugin or any earlier version of Aleph One in it. I used a custom texture to create the green this time, and it's easier and better to navigate this way anyway.

302 downloads, 0 reviews, 0 screenshots

Collect 52 cards to win!

295 downloads, 0 reviews, 1 screenshot

Marathon 1984 is a custom 3 map scenario for Marathon Infinity, created in 1997 by Frank 'Elk' Rooke and distributed in the MacAddict issue No. 13 cover CD.

This file contains the Marathon 1984 map file and a patched shapes file in MacBinary II format, compatible with Aleph One, as well as the original installer for classic MacOS also in MacBinary II format.

Contents of the Marathon 1984 original readme file:

Marathon-1984 Scenario

Level construction, textures and terminal art: Frank 'Elk' Rooke Many thanks to Devon Belcher (UESC Marine terminal pict by Devon)

Final merge: 6-16-97

1984 consists of three levels to be played as solo maps only and using Marathon Infinity.

Send your comments or questions to: kfrooke@earthlink.net.

375 downloads, 1 review, 7 screenshots, 4.0 rating

This is a 30 level scenario that truly deserves official sequel status to the original Marathon trilogy. We're so confident about that, that we're calling it Marathon 4. There are too many people that helped with this project that it's impossible to name everyone. Thank you all fans of marathon!

This scenario is truly groundbreaking in that every time you play the game, your experience will be different. No two players will ever have the same experience playing through this game. The replayability is endless!

839 downloads, 6 reviews, 0 screenshots, 4.2 rating

Dissent scenario by Thomas Reed. Modified for Aleph One by Mark (no last name).

Website

Notes for version v1.2:

from the readme:

Users must have Aleph One 0.16 or higher. "Marathon Dissent.bin" in the read me folder can be decoded (.bin file) and used with the the decoded (.bin) Image and Map files in classic. The look and feel of the game should be the same. The mml scripts are for text strings and opengl code.

654 downloads, 2 reviews, 3 screenshots, 3.0 rating

This is the latest release of this scenario.

Winter 1 is a collaborative single player project originally made in 2010 to succeed the Xmas series. It consists of 7 levels.

Contributors: Drictelt, Shadowbreaker, $lave, Axle_Gear

Notes for version 1.3:

This version is from 2022 and was packaged with modern tools, so it should work on every platform. It also has some other improvements:

• Created a new second level
• Bug fixes and changes to some of the monsters
• Various graphic changes

602 downloads, 0 reviews, 3 screenshots