From the attic to Astro: SimSim finds its voice

29 September 2026 · E06 · Development retrospective and new founder vision

SimSim began with the ambition to explore lives, choices and consequences. The most immediate way into that world is becoming clearer: talk to Astro, enter a story, make a choice, and hear the world respond.

Over the last two weeks, the work has moved from a carefully reviewed game plan and visual concepts toward a working companion with conversations, voice, selected memory and a personal workspace. This morning, a childhood memory gave those pieces a new purpose.

The next proposed experience is simple: “Hey Astro, I want to play SimSim again.”

This article separates three things: changes found in the source history, verification reported in release records, and a storytelling experience that is newly proposed. It does not announce that the new game is already available.

The game in the attic

As a child, Zan played an improvised game with his friend Simon, his younger sister and sometimes another friend. He remembers it as around 1984, although the year is approximate. Simon sometimes visited a cousin in Montréal who had games that inspired him.

There were no cards or dice. There was a storyteller, a few players and a shared imagination. The storyteller's role could change hands.

Someone might begin like this:

You wake up on a blue planet. Through the window, everything is green. There are two doors: one marked with a cross, the other red, with a heart. Which do you choose?

The group decided. A player might become an elf or an orc, choose a role, invent a superpower, or challenge the narrator's next turn. The story grew from what everyone contributed. The attic supplied the room; imagination supplied the world.

A useful description is freeform role-playing or collaborative storytelling. The exact name of the childhood game is unknown. What matters is the experience Zan remembers: being inside a world that answered back.

What changed between the first plan and today

The accessible history contains 14 public-archive commits and 70 Astro companion commits, reviewed through the source snapshots listed below. All eight exposed Astro branch heads are represented in that 70-commit ancestry. The commit ledger makes that coverage inspectable.

Dates in this overview follow the development records; exact commit timestamps are UTC in the ledger. Some late September 28 UTC work occurred on September 29 in Vietnam and Thailand.

The companion is becoming tangible

The September 28 personal-workspace release record describes Your space: documents, searchable conversations, saved memories and goals. A request to save a timestamped conversation creates a transcript document. Recall selects relevant dated user reports and provides source identifiers. Correction and deletion affect dependent records.

That record reports production deployment of v0.5.2, 392 passing automated tests, browser checks and a synthetic live-provider recall check. These are recorded engineering checks, not a fresh rerun for this article or proof that every real conversation is recalled correctly.

Memory is still bounded retrieval. A missed excerpt does not mean the user never said something. A generated answer does not become a personal fact. Device-only history does not automatically follow someone onto a different device, and clearing browser storage can remove it. Optional cloud storage and hosted model processing are separate choices.

The history also contains local-model support. The recorded initial Ollama path works from a browser on the Mac running the model; it is not evidence that a phone can already use a remote personal machine. This distinction keeps the story grounded in the actual implementation.

The two-minute moment

Zan's latest report was unusually direct: a live-voice conversation felt magical, the test ended after two minutes, and he wanted to continue. He was ready to sign up.

This is an encouraging founder reaction. Independent user demand and retention remain to be tested.

The source provides important context. The two-minute cutoff belonged to a controlled founder-only voice experiment. A recorded production test checked that the server could end the provider call without relying on the browser. Afterward, its configured limit returned to ten minutes. The record still keeps general paid native voice disabled pending its separate verification gates. Neither duration should be presented as the public subscription promise.

The inspected source head prepares v0.5.4 and refines conversational voice, partial birth-time information and calculated-sky tool use. A release-preparation commit alone does not establish which version every visitor currently receives.

The new insight: the first world can be spoken

The childhood game suggests that a complete 3D world does not need to precede an engaging SimSim experience. Astro can supply the voice and continuity; the player supplies decisions; a small persistent story supplies consequences.

Graphics can arrive later if they improve the experience. A visual pulse, readable text and responsive voice may already support the feeling of presence. This is a product hypothesis to test, not a promise of instant generation or limitless simulation.

The proposed loop is:

1. Enter or resume. “I want to play SimSim again.” Astro offers the saved fictional world, or a new episode.
2. Choose the starting point. Play pure fantasy, rehearse a future choice, or revisit a remembered moment. Personal records are used only after the player previews and approves them.
3. Set the scene together. Astro asks a few useful questions about the player's goal, role, constraints and desired tone. The player can invent, correct or take over the storytelling.
4. Make a consequential choice. The scene responds. The player can interrupt the spoken narration, ask why something happened, or choose a different action.
5. Branch deliberately. Explore one path, then optionally two or three versions from the same checkpoint. Each version keeps its own choices and consequences.
6. Reflect and leave well. Compare what changed, what was assumed and what remains unknown. Save a fictional checkpoint, or separately record a real-world intention if the player chooses.

The ideal continuation remembers the planet, the people, the unresolved tension and the player's last decision. It does not require the player to retell the entire adventure.

Personal stories need honest boundaries

One imagined example revisits a social gathering and explores inviting different people. For this public article, those people are unnamed fictional stand-ins. Their feelings, decisions and consent are not knowable from one player's account.

An episode could end years later in a mountain home with a family. That can be a moving fictional ending. Astro should frame it as one imagined branch under stated assumptions, then ask what felt meaningful or implausible. It must not tell the player that choosing a particular person would certainly have produced marriage, children or happiness.

Useful branches include uncertainty, disagreement and outcomes the player did not hope for. Otherwise the system risks producing flattering wishes instead of helping the player explore choices. No invented percentages, numerical compatibility claims or generated branch counts establish predictive accuracy.

Actual memories, user-reported outcomes and fictional events stay separate. A simulated wedding must never later be recalled as a real marriage. Revisiting the past is counterfactual storytelling; it cannot reveal the life that would definitely have happened.

The smallest experiment worth making

Proposal: one five-to-ten-minute episode, one setting, one meaningful fork and a saved return point. Start with the blue planet and two doors, which require no private-life import. Offer text throughout. Where the existing voice path is authorized and available, support interruption and resumption using that path.

At the fork, preserve the same starting state for both alternatives. Let the player change one decision and experience the difference. End with a brief comparison and the option to return later. Keep multiplayer, world rendering, automatic agent actions and a new billing system outside this experiment.

The first useful checks are concrete:

• Can a new player understand the scene and make a choice without an explanation of the architecture?
• Does an interruption stop the old narration, and does the next response follow the latest choice?
• After reopening, are the fictional place, branch and unresolved decision preserved accurately?
• Can the player distinguish story assumptions from actual memories and real-world intentions?
• Does someone voluntarily want another episode, and can they explain what they enjoyed or learned?

This proposal is a separate experiment for the game lead to reconcile with current scope. It does not silently rewrite the preserved First Light/G1 specification or treat the original thirty design reviews as approval of this new mode.

What stays, what evolves

The connective idea is now clearer: Astro is the companion you talk to; SimSim is a world of choices you can enter together. The product should earn a return through a worthwhile experience, without requiring constant check-ins.

A concise handoff for Codex

Read this article, the commit ledger, the current Astro source and its applicable instructions. Treat the development history as evidence with the stated limits and the storytelling mode as a new proposal.

Find which existing voice, transcript, memory and workspace components can support one private episode. Propose the smallest implementation for a scene, a checkpoint and two branches. Define how real memory, hypothetical characters, fictional events and actual user-reported outcomes remain separate. Include interruption/cancellation, save-and-resume and deletion behavior. Preserve current permissions, voice activation gates and First Light scope. State what already works, what needs changing and which acceptance checks would demonstrate the result. Do not infer authority to deploy application changes or contact anyone from this article alone.

Evidence and coverage

• Public archive source: 14 commits through 3ab51315a722e67d449d4799434996431e47dad9, plus its existing public planning documents. This retrospective preserves the September 21 edition.
• Astro source: 70 reachable commits through 04ed50a8623c600876568a9eb1343021ff507f85 on cloudflare-companion. All eight branch heads returned during inspection are in that ancestry, with no missing parent commits. The ledger lists each commit once.
• Astro records read include PROVENANCE.md, docs/RELEASES.md, the current README, and dated memory-continuity, local-model, device-continuity, workspace, Stripe-activation and founder-voice records. The repository is private; source links require access.
• The provenance record documents the import of earlier local history and thirty rounds of design reasoning. It also records uncaptured work as a possibility on other machines. This article does not claim an audit of every machine, unpushed change or every line of every diff.
• Childhood story and proposed play loop: Zan's September 29 founder account, edited for clarity. The remembered year is approximate; the public romantic example is anonymized. The new story mode, imagined endings and proposed evaluation remain unimplemented or unverified in this review.

The original review baseline, Astro-first direction and September 21 vision remain available. New understanding adds a chapter; it does not erase how the project got here.