What is Altiverse?
Altiverse is an AI simulation tool that forks a single decision into 2-4 alternate realities and runs them forward as living worlds for decision-makers and policy analysts. Instead of guessing at outcomes, you set a choice (a school policy, a workplace change, a healthcare protocol) and watch up to ~1,000 simulated people with their own personalities, relationships, and moods react differently across parallel timelines. The simulation is deterministic: it uses seeded randomness (Mulberry32 PRNG) so the same seed reproduces an identical world, which makes runs replayable and auditable. Default metrics include Focus, Grades, Trust, Stress, Burnout, Rule-breaking, Conflict, and Corner-cutting, and you can customize them to your scenario. Character cards show how a single person fares across every reality, causal-chain analysis links a policy to its consequence and second-order effects, and divergence visualization shows exactly when and why the worlds split. An optional AI layer generates scenarios, in-character thoughts, and written reports via an OpenAI-compatible client. Altiverse runs entirely in the browser (Vite + React + TypeScript), with no backend, no telemetry, and localStorage persistence, so nothing is uploaded; it even works offline without an API key. Results export to Markdown or PDF. It is open source under the MIT license, so it can be self-hosted and forked.
What is Altiverse used for?
Policy decision simulation, second-order effect analysis, school policy testing, workplace change modeling, healthcare protocol evaluation, scenario planning, reproducible agent-based simulation
How much does Altiverse cost?
Pros and cons
Pros
- Forks a decision into 2-4 parallel realities with up to ~1,000 simulated agents that have personalities, moods, and relationships
- Deterministic, seeded simulation (Mulberry32 PRNG) so runs are fully reproducible and replayable
- Causal-chain analysis and divergence visualization show when and why timelines split
- Runs entirely in-browser with no backend or telemetry; works offline and exports to Markdown/PDF
- Open source under the MIT license, so it can be self-hosted and forked freely
Cons
- Simulated agents and metrics are models, not validated forecasts, so outputs need human judgment
- Optional AI features require connecting your own OpenAI-compatible LLM provider and key
- Browser-only with localStorage means no built-in team sync or cloud collaboration
- Aimed at technical/analytical users; setup is heavier than a hosted SaaS app
Questions about Altiverse
What is Altiverse?
Altiverse is an open-source AI simulation tool that forks a single decision into 2-4 alternate realities and runs them forward as living worlds, letting you watch up to ~1,000 simulated people react differently so you can study second-order effects before committing to a policy.
Is Altiverse free?
Yes. Altiverse is free and open source under the MIT license. It runs in your browser with no backend, so the simulation costs nothing; only the optional AI layer requires your own OpenAI-compatible API key, billed by your chosen provider.
Is Altiverse private and does it upload my data?
No data is uploaded. Altiverse has no backend and no telemetry, and it stores runs in your browser's localStorage. It works fully offline; if you enable the AI layer, requests go directly from your browser to the LLM provider you configure.
What can I use Altiverse to simulate?
Altiverse is built for institutional decisions where unintended consequences matter: school policies, workplace changes, healthcare protocols, and similar trade-offs. It tracks metrics like Focus, Grades, Trust, Stress, and Burnout, and you can customize the metrics to your scenario.
What are the best alternatives to Altiverse?
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