Play a sci-fi RPG with an AI Game Master.
Ships, crews, colonies and the long dark between them. An AI Game Master runs the setting, plays every crewmate and official, and keeps the map and the politics straight across a whole campaign. Free to start.
Or jump straight in, no setup:
Free to play in your browser and on Android. The full memory system is on every plan, including free.
Science fiction campaigns fall apart on continuity. Distances change, a colony moves, the crewmate who died last session walks back in. Auferet is an AI Game Master built to hold a setting still: named characters, places and events go into libraries it reads every turn, and the map keeps fixed coordinates so a three-day journey stays a three-day journey.
Describe a character and a situation in a sentence, and the Game Master opens the scene. You play in plain language. No sheet to build first, no group to schedule.
Recorded, two turns in
Your history is on file from turn one
The opening
The deck plating of the Vagabond shudders violently under your boots. A high pitched and uneven whine radiates from the engine room, telling you the reactor is finally giving out. You are deep in the belt, surrounded by dense and jagged salvage, keeping your sensors dark to avoid the Tarsis patrol beacons that still have your signature flagged.
Turn three
> I hail the nearest belt beacon and ask what flags and bounties are attached to my hull.
The beacon's automated response cuts through the static, its synthesized voice flat and unyielding. A brief data burst populates your console with a list of active alerts: a high-priority 'Quarantine Violation' linked to Tarsis Station and a 'Class-C Smuggling' bounty with a bounty value of 5,000 credits.
Recorded on 2026-09-10 on the free-tier model. A fresh account started from the seed line "I'm a freighter pilot who broke quarantine at Tarsis Station last spring and is still flagged there. I'm hauling salvage through the belt with a reactor two months overdue for maintenance". The quarantine flag and the overdue reactor were never typed again: at turn two the reactor log put a number on the service overdue, 412 hours, and at turn three the beacon read the Tarsis flag back by name. The Game Master's lines are cut to their first sentences here; the whole play, every turn, is published as a JSON file.
Two turns is short memory. Sixty is the test: five facts planted in the first turns of a story on the free model, asked about at turn 20, 40 and 60, once with only recent conversation to read and once with persistent memory.
| Asked at | Recent conversation only | Persistent memory |
|---|---|---|
| Turn 20 | 3 of 5 facts | 5 of 5 facts |
| Turn 40 | 1 of 5 facts | 5 of 5 facts |
| Turn 60 | 1 of 5 facts | 5 of 5 facts |
Run on 2026-08-22 and again on 2026-08-27 with the same result. Every question and raw answer is in the result file; the method is on the benchmark page.
What it keeps track of
A galaxy that stays where you left it
A map that holds still
Stations, worlds and routes get fixed positions, so distances and travel times stay consistent all campaign.
A crew that persists
Every named crewmate, official and rival is stored with personality and history, and plays consistently whenever they return.
Hard or loose
Rigorous hard science fiction, space opera, or anything between. Tell it the tone and it holds it.
Ship and gear tracking
Cargo, fuel, repairs and conditions persist, so deferred maintenance is a real decision.
Your own universe
Upload your setting as a PDF or text file and the Game Master treats it as canon.
Free to start
Free to start, and the full memory system is on every plan including free.
Getting underway
One line and you are aboard
Open it in a browser
Nothing to download. An Android app exists if you want one on the home screen.
Say who is flying
A captain, a stowaway, a courier hauling something they were told not to open. One sentence, or tap a scenario above.
Describe it, do not menu it
Say what you do. The Game Master runs the ship, the crew, the port authority and the rolls.
Pick the route back up later
Your route, your crew and every deal you struck are saved. The campaign waits.
Questions
Running a space campaign, answered
Do I need a sci-fi rules system?
No. Describe a character in one line and play in plain words. For full mechanics, use a system mode or build your own rules in a custom game mode.
Will the setting stay consistent?
That is what it is built for. Places go on a world map with fixed coordinates and people go in a character library, both read back every turn.
Can I run a whole campaign?
Yes. Events from early sessions stay available to the Game Master hundreds of turns later, so long arcs pay off instead of resetting.
Can I bring my own universe?
Yes. Upload your worldbook or notes and it becomes the canon the Game Master plays inside.
Is it free?
Sign in to play free, with 10 credits to claim daily. The memory system is the same on every plan.
Can I play a sci-fi RPG solo?
Yes. The AI runs the game master seat, so it narrates the ship, plays the crew and the port authority, and answers whatever you try. Solo is the default and there is no group to assemble. You can bring a friend into the same campaign later and take turns.
What breaks a long sci-fi campaign?
Continuity. Space games accumulate names fast: ships, stations, factions, a crew with their own history, a route you already burned. A game running on recent context only will start contradicting its own star map a few hours in. Keeping that straight over a long campaign is the thing worth checking before you invest in a setting.
Can I run a whole crew instead of one character?
Yes. Describe the crew and the game master plays them as persistent characters with their own voices rather than re-rolling them each scene. They remember what you did on the last job, which is what makes a crew feel like a crew instead of a list of names.
Does it do hard sci-fi or space opera?
Either, because the tone follows your description rather than a fixed setting. Ask for cold, slow, physics-respecting travel and it holds that. Ask for jump drives and a galactic senate and it holds that instead. The one thing to state early is the tech level, since that is what everything else hangs off.
Can I play it on my phone?
Yes. It runs in a mobile browser with nothing to install, and there is an Android app as an option. The world lives in the browser you play in, so export it if you want it on a second device.
Take the job. Read the cargo manifest later.
Ports, routes and crew stay fixed all campaign, so the galaxy still makes sense in hour ten. Free to start, in your browser.
Play freeWant the same engine with no setting attached? Try the free AI text adventure.
A ship runs better with a crew: play it as a multiplayer AI RPG.