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Classic Marathon

From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community.

Released May 10, 2024 Developer Aleph One Developers Platforms Windows · Mac · Linux FPS Shooter PvP First-Person PvE

View on Steam ↗ Free (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

90.7%positive1,285 reviews

Recommended · 19 found this helpful

“I wish Bungie remade this or made a proper sequel to this.”

— a player, Steam review · 0 hrs played

Recommended · 5 found this helpful

“I'm conflicted, on one hand the game itself is incredibly impressive and honestly beautiful in it's own way, I like the visuals and enjoy the music, a lot. Narrative fluctuates, some parts are exceptionally well done and genuinely tense and fun to read, most of it is just, okay,…”

— a player, Steam review · 12 hrs played

Recommended · 4 found this helpful

“Clobber aliens in the back of the head at high speed. The combat involves a lot of dodging and positioning. Shooting enemies feels satisfying. Ammo is somewhat sparse at the start, but you eventually end up with more than enough ammo. This game leans into the space ship…”

— a player, Steam review · 26 hrs played

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

630all-time peak

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-25.

12achievements

5.3%median completion

1.4%rarest: Total Security Officer

Almost everyone has

42.1%Nearby — Get a bigger gun

14.2%Crushing It! — Hidden achievement

8.1%Somewhere in the Heavens... — Send a message to Earth

Rarest badges of honor

1.4%Total Security Officer — Complete Classic Marathon on Total Carnage difficulty

2.0%No Jump Key Needed — Fly for 7 seconds

2.9%More Than Famous — Read the Gheritt White terminal

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Aug 29, 2025
Aleph One 1.11

This release is not network compatible with the previous release, and films saved with this release cannot be played back with older releases. Highlights: Native Steam Linux support Audio improvements

Aug 08, 2025
Aleph One 1.11b Beta Test

Please help test this beta release. It is not network compatible with the previous release, and films cannot be played back with older releases. Highlights: Native Steam Linux support Audio improvemen

Mar 03, 2025
Aleph One 1.10.1

Classic Marathon has been updated to use Aleph One 1.10.1. This is a bug fix release. Highlights: Uses HUD filtering preference for Lua HUD images Physics file is no longer mandatory for gathering usi

Aug 23, 2024
Aleph One 1.10

Classic Marathon has been updated to use Aleph One 1.10, with support for the Steam Workshop.

Jul 12, 2024
Classic Marathon Update: Aleph One 1.9

Classic Marathon has been updated to use Aleph One 1.9. This is a major release featuring dedicated servers, ping times for metaserver net games, a pregame network loading screen, automatic demos, and

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

Genres	Action
Player tags	FPS · Shooter · PvP · First-Person · PvE · 3D · Action · 2.5D · Story Rich · Linear · Sci-fi · Space (Steam store community voting)
Features	Single-player · Multi-player · PvP · Online PvP · LAN PvP · Co-op · Online Co-op · LAN Co-op
Languages	English
Achievements	12
Official site	https://alephone.lhowon.org

Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 Processor: 64-bit Processor Memory: 4 GB RAM Storage: 100 MB available space