Container lane
Forklifts, stacked cargo and wet ground make the route less direct than the compass suggests.
CLAUDE FABLE 5.2 · BROWSER FPS
Saltline Wiki & Game Guide
Felix Rieseberg’s Claude Fable 5.2 shooter drops you into a rain-soaked container port. Play the original, learn the controls, and follow our hands-on relay notes.
Opens claude.ai in a new tab.
- Platform
- Web browser
- Creator
- Felix Rieseberg
- Mission
- 3 relays → boat
IN-GAME CAPTURE / QUAY01 / QUAY
Choose your way into Saltline
01
Controls
Keyboard, mouse, touch and listed controller bindings. Includes the original game’s mouse-capture fallback.
02
Mission guide
Understand Mission mode, relay interaction and the extraction objective, with clear limits on what we have tested.
03
Claude & Fable 5.2
How the prompt, procedural materials and synthesized audio fit together—and why the first build differs from today’s play link.
SALTLINE / MISSION
A small FPS. A very unusual origin.
Saltline is the harbor shooter published by Felix Rieseberg as a Claude artifact. The Mission brief is simple: disable three uplink relays, then reach a boat. The interest around Claude Fable 5.2 explains where it came from; the wet lanes, obstructed sightlines and incoming machines are what you actually have to deal with in play.
The main link opens the revised build. Its menu includes Mission, Holdout and difficulty choices. Our notes concern Mission; there is no game download or hosted copy on this wiki.
- 01
Open the original artifact
Follow the Play link and let the port finish loading. We reached the title screen without signing in; the host’s access conditions can change.
- 02
Check Controls before deploying
Open Controls on the title screen. On a desktop, start with WASD, mouse look and R to reload. The current build also lists touch and controller inputs.
- 03
Choose Mission, then Deploy
Use Mission for the relay objective. Check the mode and difficulty you selected, then Deploy. The live HUD is your reference for progress.
FIELD NOTES / 12 NOV 2026
Yard → quay: our mission attempt
In our continued Mission session we disabled Relay A in the yard and Relay C by the quay. The HUD progressed to 2/3 before the run ended under fire. Here is what the actual attempt taught us.
Find a way around the containers
A compass marker is not a clear walking route. We ran into a forklift and container walls while following the bearing. Changing the approach was more useful than continuing to push straight ahead.
Get close, then hold E
The live relay has illuminated strips. Close the distance until the interaction is visible, keep holding E through the circular progress indicator, and check the counter. Our first cut changed 0/3 to 1/3 and the objective to the remaining two relays.
A relay cut brings more pressure
The first cut was followed by an incoming-machine message. At C, beside MV KITTIWAKE, the counter reached 2/3 while damage indicators appeared. We lost the run before finishing the shed relay and extraction; staying exposed during the hold was costly.
Our impression: the port is convincing and the objective is easy to read, but navigating around cover and surviving the hold matter more than simply chasing the diamonds. This is a hands-on account of an unfinished run, not a fastest-clear claim.
Our capture: moving from yard to quay
A short continuous browser recording from the same Mission attempt. The counter is already 1/3 as we approach C. It shows the live port and weapon movement; it is not a complete walkthrough.
6.9-second capture · no audio recorded · original game by Felix Rieseberg
Inside Saltline’s harbor
Real captures from the revised original: the container lane, the yard relay, the quay, and the result of our attempt. Open an image to inspect its HUD.
Relay A · Yard
The illuminated terminal before the cut. The nearby traffic cones and cargo help identify the scene.
Relay C · Quay
A second relay sits beside the ship and gantry. This capture shows the counter at 1/3.
Our attempt · 2/3
The run ended with two relays cut. The displayed survival time is not a completion time.
CLAUDE / FABLE 5.2
Where Claude & Fable 5.2 fit in
Saltline is the game. Claude is Anthropic’s AI, and Fable 5.2 is the model Felix identifies in his experiment. His launch post describes an initial one-prompt run of about eight hours. The current Play link is a later revision, so “made in one shot” does not mean today’s linked game is untouched.
The making-of shows textures generated as functions, rather than imported image files, and sound built through synthesis. That helps explain the port’s small browser format without turning a compact FPS into a claim of a finished commercial AAA game.
Read the Claude Fable 5.2 story ↗
- One prompt
- Creator’s account of the first build
- About 8 hours
- Creator-reported initial run
- Revised afterward
- A separate first version remains linked
Gameplay & the making of Saltline
Two different creator videos: one shows the game in action, the other explains the Claude Fable 5.2 build. Each player loads only when you choose it.
FELIX RIESEBERG1:12
Felix’s original gameplay
Watch the rifle view, hostile machines and relay HUD in the creator’s 1:12 launch clip. This is his footage, separate from our own playtest.
FELIX RIESEBERG3:02
Making Saltline with Claude Fable 5.2
A 3:02 making-of from Felix Rieseberg. Look for procedural materials at 00:55, wet-ground interaction at 01:35 and synthesized sound at 02:20.
PLAYER DISCUSSION
From player discussion
“Does Saltline work on mobile or Firefox?”
The public Hacker News discussion contains both mobile-control complaints and reports of Firefox working on some systems. These are individual reports, not a compatibility matrix. The current game lists touch controls and alternative mouse input; try the original on your own device before assuming a browser is unsupported.
Read the public discussion ↗Troubleshooting →Which Saltline version is this?
The main Play link opens the revised version. In the title-screen note, Felix says he spent about two additional hours improving weapon models, sound and gameplay. That screen links a separate first build made without human feedback. Inputs and screenshots on this site refer to the revised artifact checked on 12 November.
Open the initial one-shot version ↗Saltline FAQ
Where can I play Saltline?
Use the Play Saltline button to open Felix Rieseberg’s shared Claude artifact. The game runs there; this wiki does not host a copy or a download.
What is the goal in Mission mode?
Cut three uplink relays and reach the boat. The current Controls panel lists holding E at a relay, or holding USE on touch.
Can I play Saltline on a phone?
The current game documents touch controls. That does not establish smooth play on every phone. We have not tested physical mobile hardware; player reports vary.
Is this the untouched AI-generated version?
No. The main link is the revised artifact. Felix’s note explains the extra work and links the initial one-shot build separately.
What connects Saltline, Claude and Fable 5.2?
Felix Rieseberg published Saltline as an experiment made with Claude Fable 5.2. The game runs in your browser; Claude and Fable describe the AI background, not a separate game client or a cloud-streaming subscription.
Did this guide complete the game?
Our recorded attempt cut A and C and reached 2/3, then ended before the last relay and boat extraction. The images and notes document that result; they do not claim a complete clear.
Sources & creator credit
Gameplay facts here refer to the revised artifact linked above. Creator statements and player reports are identified separately.