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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 update (March 2024) 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 the Marathon trilogy’s backstory, complex original characters, and returning faces from the trilogy’s cast
• A huge, acclaimed soundtrack with unique music for every level, lasting more than seven hours total, and created by over a dozen composers and arrangers (significantly expanded in 1.3 previews 4 through 6)
• 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 through 6)
• Five texture sets, encompassing 650 high-resolution textures, 12 detailed original landscape textures, and several separate human and alien environments
• An in-game menu system (new in 1.3 preview 6) that toggles several optional features, including:
  • Simplified overhead map views in around twenty levels (new in 1.3 preview 6)
  • A secret tracking system (new in 1.3 preview 4)
  • Auto-save the game on level transition (new in 1.3)
  • An RPG-style monster health display (new in 1.3 preview 6)
  • Shared pickups between players in network games (new in 1.3 preview 6)
  • Disabled friendly fire between players in network games (new in 1.3 preview 6)
• 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 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 6 (released on 2024-03-07), 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 6:

Current development release. 1.3 incorporates several new features, many detailed above. New in 1.3 preview 6:

• Hard requirement of Aleph One 1.7 or later.
• An in-game menu system that toggles a ton of new optional scripts (a huge thanks to Solra Bizna for the menu system), including:
  • Hide irrelevant layers of the overhead map (a massive aid to navigation).
  • RPG-style monster health display.
  • Disable friendly fire in cooperative games.
  • Shared item pickups in cooperative games.
• New drone and Juggernaut sprites in chapter four. (A huge thanks to General-RADIX for these.)
• Fixes to dozens of physics inconsistencies. (A huge thanks to Irons for his help with this.)
• Major music changes:
  • Every level now has at least one unique music track.
  • “We Met Once in the Garden” now uses multiple tracks that shift depending on in-game events, à la FTL or Cadence of Hyrule – to our knowledge, this is the first scenario to make use of Aleph One 1.7’s dynamic music features, though in a relatively simple fashion.
  • Seventeen of Craig Hardgrove’s tracks have been newly remastered or remixed from newly available, much higher-quality sources, some multiple times.
  • The game soundtrack is now encoded as Opus, the objectively best lossy music codec by every performance metric.
  • True obsessives may use an optional lossless FLAC version for the in-game soundtrack.
• New (or newly accessible) areas in “Deja Vu All Over Again”, “Roots and Radicals”, “Core Done Blew”, “A Friend in Need”, “Frog Blast the Vent Core”, and “I’ve Got a Bad Feeling About This”.

Additions to 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.

2,307 downloads, 2 reviews, 5 screenshots, 5.0 rating

Pretty self explanatory.

1,164 downloads, 2 reviews, 0 screenshots, 4.5 rating

A horrible virus is affecting everything around you.

The only way you know how to deal with the situation is to spread it around as much as possible, and kill everything that remains.

(A plugin compatible with Marathon 2, Infinity, or similar scenarios.)

1,104 downloads, 2 reviews, 1 screenshot, 5.0 rating

Gigapixel AI upscaled graphics for Marathon 1, 2, and Infinity.

2,407 downloads, 2 reviews, 15 screenshots, 3.5 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.

1,590 downloads, 2 reviews, 3 screenshots, 3.0 rating

The main thing to know about this plugin is that if you're going to refer to it, you must use ALL CAPS.

Along with that, you should know that it adds extra gore to every monster that dies. Some monsters spill blood when you shoot them. Bullets/explosions leave marks on the ground and walls. All changes are purely visual. The amount of gore you see is configurable (see readme for details).

This is compatible with M2 and Infinity, and any other scenario that largely uses unmodified versions of those monsters.

Notes for version 1.2:

• Tooncinator made the shapes patch fully compatible with Infinity by adding missing SMG graphics, vacbobs, and color tables.
• Removed the crush sound as it wasn't working for everyone and didn't add much
• Now with new butts!

2,333 downloads, 2 reviews, 3 screenshots, 5.0 rating

These are compatibility files for Wheels! (a marathon engine game) to make it work in Aleph One. If you happen to own Wheels!, you can combine it with these files to play it with Aleph One. The original game supported input devices for people learning to use a wheel chair, and I don't know if those work in Aleph One. You will be limited by whatever inputs it supports, so this is mostly just for people curious to go through the game outside the context of its original purpose.

1,783 downloads, 2 reviews, 1 screenshot, 3.0 rating

The Map file for Marathon 2: Durandal, as it was presented in the Windows 95 release.

The Windows map file contains several visual (and a few gameplay altering) changes from the Mac version, many small, some big. It also has a few altered terminal images.

Anyone familiar with "Waterloo Waterpark" will immediately be surprised with this rendition.

There are some players who do prefer the Windows map, so I decided it would be worth posting on Simplici7y.

The M2 Win95 map file is not particularly hard to obtain, as it is available in retail M2 copies for Windows, and it's available as a download on the Trilogy Release site, HOWEVER, that merge does not contain chapter screen sound effects. I re-merged the map file with the Mac version's sound resource folder, so now all chapter screens will play the appropriate sound.

1,910 downloads, 2 reviews, 3 screenshots, 3.0 rating

The entire Marathon OST meticulously restored with new instruments and better production value.

Unlike most M1 music replacers, this one does NOT try to heavily alter the original composition nor is it simply a sound font swap. I remixed everything inside of FL Studio 20 with high quality VST instruments and (occasionally) real hardware synths and sounds. My goal was to create a faithful reinterpretation of the OST with mostly appropriate sounds (nothing more modern than 1990's electronic instruments, etc) but with a better overall balance and less cheap sound. I'm extremely proud of the outcome, and I think fans of the original game and its score will really appreciate it too!

This download contains a FLAC and OGG version, to replace the in game music, simply drop the OGG files into the "Music" folder in your Marathon directory.

If Aleph One is ever updated to allow gapless looping of music, I will create a loopable mix.

(if you enjoyed this music, check out fragileforms.bandcamp.com , where I post my original music as MetaMorphosys)

Notes for version 1.4:

Corrected typographical errors in the tags

3,195 downloads, 2 reviews, 1 screenshot, 4.5 rating

Play the Survival solo gameplay mode from Durandal XBLA. Rack up carnage points as you face off against hordes of increasingly difficult enemies.

Play on the four Survival maps built by Freeverse for the port. Or use the plugin, pick any netmap, and try not to die.

For a similar co-op experience, see Survival.lua.

Notes for version 2.1:

Version 2.1 fixes a bug which caused films to go out-of-sync.

4,934 downloads, 2 reviews, 4 screenshots, 4.5 rating

"What a hoot! If you enjoyed revisiting Earth in Tempus Irae, you're going to really like your "Vacation In Vilcabamba". The mapmaking is excellent and more than sufficiently puzzly, the new textures are gorgeous, the terminals are completely proof-read, the AI is moderately twisted, and the monster placement is quite good, with a new baddie for you to wrestle with. My only disappointment was that it was only one level; I finished it cheering for more." Description by Rigger

Created by Daniel Thomas

I have applied the old Mac patches and converted to files that modern Aleph One will read. Enjoy! -Shappie

2,172 downloads, 2 reviews, 3 screenshots, 4.0 rating

"A 19-level solo masterpiece, with new sounds, shapes, terms, physics, bobs... and it's totally non-linear (you decide what order to do the levels in). Brought to you by the folks who did U.S.S. Raider, Athens Outpost, and the Marathon's Story page."

This scenario has been converted to an Aleph One compatible format and repackaged for Simplici7y.

2,435 downloads, 2 reviews, 4 screenshots, 3.0 rating

Translated versions of games in the trilogy are all the rage these days, so I thought I'd make my own version. I painstakingly went through every line of the terminals and translated them to loch. Just select this map file when playing M2, and you're good to go.

1,862 downloads, 2 reviews, 1 screenshot, 5.0 rating

Netscripts

A pack of netscripts for Infinity (I believe most of these should function in other Scenarios as well)

Includes

-Headhunter: Kill players, collect keys, and take the keys to the hill to score!

-Infection: Don't get infected!

-Kill Confirmed: Kill the enemy team and collect the dropped items to gain points

-Life Support: Your health is slowly draining, get kills to extend your life

-One in the Chamber: You have one shot. Make it count.

-Readme with more gametype info

Credits

-Created by: Aurorable_Fox -Additional Help: Liacrow

Contact

-Aurorable_Fox on discord, and twitter

1,798 downloads, 2 reviews, 0 screenshots, 5.0 rating

Here it is as requested. Sanctioned CLIQUE upload.

J. Kristopher Huddy was spawned in a test tube at a military laboratory just outside of Fresno, California. He was the product of a top secret government effort to clone superhuman killing machines. However, just months after the creation of "ZSC-08390" (as Huddy was then referred to), the project was scrapped after military brass concluded the fusing together of DNA from Don Knots and that guy who played Klinger on MASH could serve no real purpose against the Solviet threat. Huddy was debriefed and sent on his way with only a suit, a wristwatch and $20 to his name. After blowing the $20 on bogus lottery tickets and pawning the watch for another $20 which was quickly lost on still more lottery tickets, Huddy realized he had a problem... he need more money to throw away on lottery tickets. But instead, he checked himself into the famous Betty Ford Clinic in a desperate attempt to overcome his gambling addiction. One year later, Huddy was clean and sober, though his gambling problem persisted, mainly due to the fact he had unwittingly spent the last year in a substance abuse program. Nevertheless, Huddy had a new lease on life and was determined to make a name for himself. Immediately, he applied for unemployment and tirelessly began watching soap operas. Tragically, when Huddy's lifelong dream of hanging out and doing "whatever" proved fruitless, he decided to devote himself to his second love of designing video games. A year later, his 8-bit opus "Los Disneys," was complete. Though the game earned him no money and little recognition, it did succeed in placing his name high atop the list of people Disney was least likely to employ. He then began work on a new game, Ghetto Blaster. But it was the horrific events of September 11th that put the project on hold. After he was denied admittance into the army after becoming the first person in the history of the U.S. military to be legally declared a coward, Huddy found his patriotic calling in the form of creating a second video game. Originally titled "Sophomore Slump," the new game was later renamed "Blood of Bin Laden." Huddy has since settled down and is currently employed at Utah's third largest fish-hatchery and spends much of his time rewriting Tom Clancy novels in calligraphy, jazzercising and speaking in a thick, albeit fake southern accent.

2,020 downloads, 2 reviews, 2 screenshots, 3.5 rating

This is a set of 2304 Mararthon: Yuge style single player maps. There is pretty much no plot on any of these maps, it purely exists for killing monsters.

If you are unfamiliar with Mararthon: Yuge, it can be downloaded at http://simplici7y.com/items/mararthon-yuge.

The maps can all be played with the Mararthon: Yuge scenario (recommended) or Marathon Infinity.

• Yuge Bigly 1: The Loneliest Number - 256 maps with the same parameters as normal Yuge levels.
• Yuge Bigly 2: Electric Doogaloo - Explore the Doog District of INFINITYS with 50% chance of doogstorms and 50% chance of SPOOKYdoogs.
• One Weapon Edition - There is only one type of weapon that spawns on these maps. Shitsticks required.
• All Weapons Edition - All weapon types can spawn on each map, instead of only 3.
• Hardcore Edition - Less health than normal Yuge maps. For people that want a challenge.
• JIHADIC-1 - All maps have either rain or JUICEstorms.
• Roguelike Edition - Pattern buffers are removed and each exit teleports you 1-10 levels forward.
• Spinal Tap Edition - More health, ammo, and monsters.
• Wuss Edition - More health and ammo. For super casual gameplay.

Notes for version 1.3:

Version 1.3: * Fixed terminals to make it work with newer versions of AlephOne.

Version 1.2:

• Windbreaker created new shapes files for a brand new series, Yuge Bigly 2: Electric Doogaloo.
• One Weapon Edition added.
• Updated all maps to include the full set of community quotes from Mararthon: Yuge.
• Fog added to all maps.
• Other random fixes and changes to make the maps better fit their descriptions.

3,352 downloads, 2 reviews, 1 screenshot, 3.5 rating

Xmas 1 is the first in a series of collaborative single-player projects. It consists of 5 levels.

Contributors: Goran, RyokoTK, Drictelt, Zero

Notes for version 1.2:

I retrieved this scenario from fileball.whpress.com, unstuffed it, zipped it, and uploaded it here.

2,651 downloads, 2 reviews, 0 screenshots, 5.0 rating

classic shit by my man mordekai. all three known versions plus an extra, exclusive, all-new level "NEW SCHOOL BOLLYWOOD" by me. enjoy

Notes for version 1.0:

first collected version

<3 mord

2,442 downloads, 2 reviews, 1 screenshot, 5.0 rating

Marathon 1 monster textures at 16x the original resolution using xBR scaling. Includes marine textures and every color palette.

Credits: - General Tacticus, who helped me index M1's original shapes file - Treellama, who helped me use Aorta to remove blue from the textures - Hawkynt, who created the program that could batch upscale 2,602 textures, and - Hyllian, who created the xBR 4x scaling algorithm

Notes for version 1.3:

• Added some missing textures
• Reverted back to original algorithm
• Quality-of-life improvements

3,821 downloads, 2 reviews, 7 screenshots, 5.0 rating

This 360° wrap-around starscape replacement shows the stars as they would appear in the Tau Ceti system on July 3, 2794 at 0839 UTC, as well as a few local objects likely to be visible.

The stars, colony, and positions of planets have been rendered by Celestia, the open-source universe explorer. Using data on the planets known to be orbiting Tau Ceti, I made a few tweaks within real parameters to make things more comfy for our Martian colonists.

Remember the pink-brown planet from the Pfhor chapter screen? It's now an ice giant around which the colony orbits. Or is it a water giant? Celestia says it's 40F up there. Whatever, it's like Uranus, execpt smaller, warmer, and not sideways.

The huge blue planet is the colony moon, 1300 km below. I tried to put the Marathon in as high an orbit as possible while still being close enough to be an easily reached space station.

You can easily find Sol in the screen shot from G4 Sunbathing. It's just above and to the left of the right gantryway, or just below and to the right of Arcturus, slightly brighter than the surrounding stars.

On Marathon levels, your point of view will be from the Marathon's surface. The Scoutship will be part of the backdrop, while the scenery item is replaced by the unused slave transport sprite. On Pfhor levels, you view from an alien ship surface, and the Marathon sprite has been enhanced.

Software used: 1 - Gravitation to find a stable orbit for the moon, 2 - Celestia to produce renders, 3 -Hugin to stitch them together into a panorama, 4 - GIMP for postprocessing and Marathon's surface texturing.

To install, please drop the zip file into your appropriate plugins folder. Also, make sure that in Preferences > Graphics > Rendering Options, that "Replacement Texture Quality" for Landscapes is set to "Unlimited."

Notes for version 3.0:

-New landscape for Pfhor levels -Corrected star orientation on Pfhor levels -Removed floating Marathon logo -Restored & enhanced Marathon sprite -Shortened plugin UI name -Fixed Windows compatibility (I hope)

3,320 downloads, 2 reviews, 3 screenshots, 4.5 rating