Single-player games like Classic Marathon
Below are 8 single-player Steam games similar to Classic Marathon, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Classic Marathon page.
Ranked picks
- 1
Classic Marathon 2
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.
- 2
Classic Marathon Infinity
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
From the team that brought you Aleph One, the classic sci-fi FPS Marathon Infinity from Bungie on Mac revived for modern hardware by the fan community.
- 3
Blood: Refreshed Supply™
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
Things are about to get… bloody! Soak up 42 pulse-pounding levels dripping with Lovecraftian atmosphere as you battle your way through armies of sycophantic cultists, zombies, gargoyles, hell hounds, and other insatiable horrors, in your quest to defeat the loathsome Tchernobog.
- 4
Halo: Campaign Evolved
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
Halo: Campaign Evolved is a faithful yet modernized remake of Halo: Combat Evolved’s campaign, rebuilt from the ground up.
- 5
Black Mesa
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
Relive Half-Life.
- 6
STAR WARS™: Dark Forces Remaster
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
The evil Empire is currently creating a doomsday army behind a veil of secrecy. However, they are no match for the Rebel Alliance's covert operations division. Your mission is to infiltrate the Empire and put an end to their plans for terror and domination.
- 7
Serious Sam Classic: The First Encounter
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!
- 8
Half-Life
Single-player alternative to Classic Marathon — playable solo, no multiplayer required. Shares Action with Classic Marathon.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.