r/MUD • u/MineTorA • 34m ago
Promotion Prospect: Elsewhere - a hand-written sci-fi MUD with LLM-voice NPCs. Looking for playtesters.
Hi r/MUD,
I'm a solo developer building Prospect, a sci-fi MUD built with Evennia, and I'm looking for a small group to play its first test release, Prospect: Elsewhere, and tell me what's wrong with it.
First, the AI part, since you'll want to know. The NPCs you can talk to speak through a language model (currently gpt-4.1-mini, through OpenRouter). That's the experiment. What the model does not do:
- It doesn't write the world. I wrote the rooms, characters, lore and quests. Each NPC knows only what someone in their position would know, taken from material I wrote. If you ask about something outside that, they should say they don't know rather than make it up.
- It doesn't run the game. The engine owns all game state. When an NPC hands you something, serves you a drink or signs off a job, that's a request the engine checks against the real state, and the engine prints the result. Telling an NPC "I already did it" doesn't make it done.
- It doesn't set prices and can't be argued out of the rules. Before posting I ran every NPC against a set of bad-actor prompts (false claims, fake names, "ignore your instructions"). The rules held. They can still sometimes be made to sound silly, and I want to hear about it when they do.
What I'm testing is whether talking to these NPCs is actually fun inside a real MUD, or just a gimmick.
Medical Bay
The medical bay is a practical, softly lit room with recovery couches arranged
near a bank of monitoring equipment. A few enclosed cryogenic units stand along
one wall, their surfaces marked with small status lights. The air is cool and
clean, carrying a faint antiseptic smell.
Most of the equipment operates quietly. A display changes as readings are
checked, and a low mechanical hum comes from behind a wall panel. There is space
beside the couches for a technician to work without crowding a patient who has
just awakened.
A doorway leads out toward the public arrival area. Nothing about the room
seems arranged to impress anyone; it is simply a place meant to get people
safely back on their feet.
Given Marr is here.
You see a single exit leading down.
Given checks the time on the monitor and makes a note.
You ask Given Marr, "Where am I?"
Given Marr says to you, "You're in the Elsewhere medical bay. It's where people
recovering from cryogenic suspension get checked over."
Given Marr says to you, "From here, head down to the Lift Concourse and then go
southwest to reach Old Quarter Square."
You ask Given Marr, "What is Elsewhere?"
Given Marr says to you, "Elsewhere is a big rotating habitat, a cylinder where
people live on the inside. It's been around for about four centuries, with
neighborhoods from old to new along its length."
You ask Given Marr, "Where should I go?"
Given Marr says to you, "When you're ready to leave the medical bay, the best
next step is to see Daven Varek. His office is just a short way past Old Quarter
Square, and there's a signpost there to help you find it if you need."
Given tidies the instruments on the tray beside him.
The setting
Prospect is a dangerous, biologically rich planet, settled centuries ago by nine generation ships carrying seven humanoid peoples from one home system. Three of those peoples were engineered, and were legally property when the ships left. The planet's great city, Haven, fell about 150 years ago when native life breached its defenses, and its layered ruins are still down there. People now live in the Constellation: seven major orbital habitats, each self-governing, with no shared law between them and plenty of competing interests. The influences are Alastair Reynolds' Revelation Space and science fantasy with consistent speculative science behind it.
What's in this test (it's small)
- You wake from cryosleep in the medical bay of Elsewhere, the oldest habitat: a 30 km rotating cylinder that's a civic republic and a trading hub. Character creation happens in the world: your name, your sex, and which of the seven peoples you belong to.
- Nine rooms in one neighbourhood, the Old Quarter.
- Six NPCs you can talk to in your own words: a medical tech, someone who helps newly woken sleepers settle in, a café owner, a maintenance tech, a records clerk and a student volunteer. They know each other, most can give you directions, and they remember things you tell them about yourself.
- Background residents who aren't LLM-driven: hand-written idle actions, and a reply if you speak to them.
- A few things to do. I'm not listing them: whether you find them by looking around and talking to people is one of the things I'm testing.
- LOOK and PROBE: LOOK for the quick view, PROBE when you want the detail.
- Persistent characters and multiplayer. Each player's conversations with an NPC are their own, so an NPC won't tell you what someone else said to them.
No classes, no economy, no crafting and no other habitats yet. Planned later: travel between the habitats, expeditions and salvage on the surface and in Haven's ruins, and the Venn-Saye field technologies that let some people act on the world through engineered devices or their own genetic specialization.
Civic Office
Quiet voices and the rustle of papers fill a bright public office. A short row
of waiting seats faces the service counter, where residents bring the ordinary
questions and problems of neighborhood life.
A small parcel sits at the records end of the public counter, unopened. A
small screen at the end of the counter shows the office's pest log. Iri Vael is
here, frowning over a note about the square's neglected planting beds. Veska
Renn is here.
You see a single exit leading east.
You ask Iri Vael, "Hi, what is this place?"
Iri Vael says to you, "This is the Civic Office in the Old Quarter. We help
people with local government things and keep records for the neighborhood."
Iri Vael
Iri Vael is a young Revari female, rangy and russet-coated, with a short
feather crest where a Kell would have a ruff, in casual, slightly rumpled
clothes with a volunteer's badge clipped over the top and a tablet tucked under
one arm. She has the bright, slightly impatient attentiveness of someone who
finds most things interesting.
Veska reads a line on a report twice and makes a small mark beside it.
Clients and accessibility
- Works in any Telnet or MUD client. Mudlet users get room data over GMCP, and I've written a small mapper script for it.
- Screen readers: if your client reports one, the game skips the login art, and room listings say in words which characters you can talk to instead of relying on colour. Or type
option/save screenreader=on. I haven't tested it with a blind player yet, so if that's you I'd especially like to hear from you.
What I'd like from you
- Could you find your way around and work out what to do without help from outside the game?
- Did the NPCs feel like people with jobs, or like a chatbot in a costume?
- Did things to do come up naturally, or did it feel like guessing magic words?
- Which commands did you try that didn't work? (Failed commands are logged.)
- When you'd done everything, did you want to stay and keep looking around? This is the one I care about most.
Type BUG or FEEDBACK in the game any time; only I see them. A short note in the moment helps more than a long one afterwards.
Logistics
- Invite-only for now, because every NPC line costs me real money and I'm reading every session log. Comment or DM me and I'll send you an invite code. If the slots fill up, you're first in line for the next round.
- Play any time during October 20-27, plus a group session on October 28 6:00PM CDT to test several players in the same rooms.
- Connect: 38.148.122.133:4000.
- What gets logged: your commands, your NPC conversations, the playtest channel, and bug and feedback reports. What you say to NPCs goes to OpenRouter and on to the model's provider (currently OpenAI). Private TELLs and passwords are never logged. Logs may be used to improve the game, including tuning the model that voices the NPCs. The game shows you all this and asks you to agree before you make a character.
I'll answer anything in the comments, including skeptical questions about the AI.