A modern engine for text adventures
Play complete illustrated adventures, then build and share your own with characters, puzzles, combat, crafting and consequence—without writing story-specific code.
See the engine at work
Sudos combines a deterministic text parser with illustrated scenes and authored systems. Try this small moment from an imagined adventure.
Surroundings
Three crystal keys rest before a silent column of light. The white key catches every reflection. The blue one gives off a low, steady hum. Warm sparks move inside the amber key.
A narrow bridge continues east into the cathedral.
This is Sudos
Artwork, full surroundings, conversation, command history, inventory and navigation live together in one focused play space. Turn artwork off and the written adventure remains complete.
More than words on a screen
Characters remember discoveries. Spells can turn a battle. Puzzles reshape the world. In Sudos, each authored system can feed naturally into the next.
Archivist Lysa AerAuthored conversation
NPCs have descriptions, aliases and dialogue topics that can appear as the player learns more. A conversation can reveal an object, begin an encounter, unlock a journal entry or change what becomes possible later.
“The archive did not burn. It was removed—one memory at a time.”
Designer-authored encounters
Creatures can fight alone or in packs, use weighted signature attacks, resist magic, chase the player and deliver their own authored narration. Larger groups rotate through the visible front line.
> attack crown gryphon
Your blade glances across the gryphon's bronze breastplate.
The Crown Gryphon beats both wings, driving you back beneath a storm of feathers.
Reusable spell library
Authors define spells once, then attach them to creatures, scrolls or encounters. Spells can damage, heal or drain life; strike one target or an entire pack; require a wind-up; and use custom success, resistance and interruption text.
Blue-white charge gathers between the automaton's hands.
Clues, objects & discovery
Hide objects inside scenery. Split clues between conversations and locations. Require a sequence, a key, a bearing or a choice. Sudos tracks what the player has examined, carried, used and learned.
The connective tissue
Visual story events listen for entering, examining, taking, using, talking, opening, unlocking and defeating. Conditions check player knowledge and state; ordered actions then change the story.
Resources, designs & production
Authors define resources, currencies, reusable designs and the capabilities needed to produce them. Work continues in real time, survives closing the game and can run through workshops, objects or entire locations.
◈ Every example above is authored in the World Builder and saved inside the adventure.
Adventures included with Sudos
Cross centuries in an original epic. Walk into a literary classic. Then see that same tale rebuilt for a modern world. Every adventure is authored with the same visual tools available to creators.
Flagship adventure
Awaken with no memory on an unfamiliar shore. A trail of impossible worlds waits beyond the trees—medieval courts, drowned cities, primal wilderness and a future built around the remnants of a forgotten power.
A tale, reimagined
The same legendary bones. Two distinct creative visions. A demonstration of how prose, setting and art direction can transform the experience.
1883Rain on the Devon coast. Flint's map. The Hispaniola. A painterly storybook journey shaped in the spirit of Stevenson's original world.
NowA coastal inn, maritime expedition and dangerous island recast for today—showing how far creators can carry a familiar story.
For storytellers, game makers & modders
Design places, connect routes, write conversations, place objects, build encounters, tune palettes and make the world respond—all inside the integrated visual World Builder.
Arrange areas and locations visually. Add directed routes, hidden passages, barriers, containers and detailed scenery.
Combine dialogue, creatures, puzzles, spells, generators and ordered story events without adventure-specific code.
Author palettes, artwork, layered audio, currencies, merchants, resources, designs and production capabilities.
Keep an editable designer package, or export a protected player package containing its world and managed assets.
Learn the complete World Builder
From the first room to dialogue, combat, shops, puzzles, crafting, magic, encounter generators and complete quests.
Watch the free course on YouTube
Combine conversations, persistent flags and ordered events into a complete story puzzle.
Watch Episode 37 →
Accept a task, recover a real inventory item, return it and reward the player.
Watch Episode 38 →
Build at your scaleOne room or an entire cycle
Begin with one carefully authored room, then grow when the story needs it. The same engine supports intimate mysteries, literary journeys, combat sandboxes and The Orb Cycle's 280-location epic.
“Your first adventure doesn't need sixty locations. One carefully authored room can be an entire world.”
Play it your way
Artwork can enrich a scene, but it is never required. Authored descriptions carry the complete experience.
Use natural commands, accessible controls and local narration designed to keep the player in charge.
Every clue, response and consequence belongs to the creator. The parser is fast, deterministic and offline.
Sudos is coming to Steam
Play the included adventures or build your own with the complete World Builder. This free Windows preview is version 0.9 and expires after 15 October 2026. Your adventures and saved games will not be deleted when the preview ends.
Download for Windows ↓ Windows x64 · 816 MiB ZIP · Pre-release version 0.9 Download SHA-256 checksum