A damaged corridor inside Moon Base Juno

Moon Base Juno: Breach Protocol

Moon Base Juno: Breach Protocol is a browser-playable lunar survival interactive fiction and classic text adventure. You play by typing commands. The story answers with consequences, and the base keeps score of what you stabilize, what you isolate, and what you are forced to abandon.

An impact hits nearby while you are outside in a suit. You wake in the dust with your oxygen counting down and the base on the horizon looking intact, the way a thing looks intact right up until you notice it is leaking.

Juno is a massive facility, stitched together by pressure doors, redundancy, and policy. After the breach, that stitching starts to fail. The only way out is to make the base breathe again long enough to reach the hangar and leave.

progress saves automatically play in your browser

A dim corridor with drifting smoke and loose cabling

What it feels like

Cold regolith, hard vacuum outside the walls, and a base that keeps trying to run routines with half its sensors blind. Early play is triage. Mid game becomes dependency puzzles. Late game is controlled, turn-limited cascades where you plan like it is a drill.

Dust hangs in your helmet light. Somewhere ahead, a warning tone repeats at a steady pace. A door seal is hissing. Something is losing pressure. > listen The hiss is not constant. It surges, then fades, like a valve trying to hold. > examine door A warped bulkhead seam. Frost along the edge. The latch still wants to close. > use patch kit on seam You press the sealant into the crack. The hiss drops to a thin thread.

About the story

This is a survival story where danger comes from physics and cascading failures, not monsters. Everyone inside the base is gone. What remains is a chain of systems that only works if you rebuild it in the right order.

Mechanically, it is a classic Infocom-style text adventure rebuilt for the web. You explore by typing natural commands, combining tools, routing power, sealing sections, reading logs, and learning what the base expects from you. Later puzzles can become lethal and time-limited, but they are designed to be learnable. When you die, you restart near the problem, not at the beginning of your day.

There are multiple endgame paths. You can restore authorization and leave cleanly. You can bypass safety systems and escape without permission. Or you can signal for help and wait. On the Moon, help is human and friendly, but distance still charges a price.

Quick facts

For readers, streamers, and anyone searching for this kind of sci-fi interactive fiction.

genre: interactive fiction / text adventure / parser game / science fiction / survival play style: exploration + systems + puzzles + escalating pressure platform: web browser (no install) tone: procedural dread, hard vacuum, alarms in the dark saving: automatic progress, optional manual save best first commands: look, examine, inventory, listen, read

If you like systems-driven survival and slow, believable sci-fi, Juno will keep you busy.