Functional DemoSaaS

Life Decision Simulator

A life-decision simulator that models the long-term money, career, risk, and lifestyle impact of major choices.

LifePath Simulator marketing home page headlined 'Simulate your biggest life decisions before you live them,' with a grid of decision types and a sample Life Score card. — LifePath Simulator landing page

What it solves

Major life decisions — moving cities, changing careers, starting a business, renting vs buying, marriage, having children — carry financial and human consequences that are hard to see in advance. People weigh them with spreadsheets or gut feel and miss the tradeoffs across money, time, stress, relationships, risk, and regret. There is no simple way to test different futures before living them.

Built for Individuals and couples facing major life decisions; also entrepreneurs and risk-takers, family planners, and advisors (financial, career, relocation, coaching) working with clients.

Overview

Life Decision Simulator lets users build multiple possible future paths for a decision, enter a baseline and rank their values, and run a simulation that projects outcomes across finances, career, health/stress, relationships, happiness, risk, and regret. Results appear as year-by-year timelines, life scores, and a Multiverse view that compares paths side by side and recommends staged, lower-risk versions of risky decisions. Users get quests (next steps), shareable reports, and an AI strategist that explains tradeoffs. It is packaged as a SaaS with free, pro, couples, and advisor tiers.

What this demonstrates

The engineering core is a modular, explainable deterministic simulation engine — separate baseline, financial, housing, career, business, family, risk, and regret modules — producing structured yearly results and value-weighted scores. It layers an AI explanation step grounded in simulation data with a high-quality templated fallback, Stripe subscription gating with a mock mode, and Auth.js accounts. Every optional integration degrades gracefully when its key is absent.

What makes it different

Simulate your biggest life decisions before you live them — and see not just the financial answer, but the full human answer.

Simulate, do not predictShows possible outcomes based on assumptions and ranges, never guarantees the future.
Simple input, deep outputA simple experience over complex simulation logic.
Emotional and practicalWeighs money, risk, time, relationships, happiness, and regret together.
Game-like, not childishLife stats, scenario battles, and timelines kept premium, not gimmicky.
Clarity over complexityEvery result says what looks best, why, and what to do next.

Simulation engines · 14

Baseline Profile Engine
Normalizes current life data into a baseline of cash flow, stress, stability, flexibility, and risk capacity.
Financial Projection Engine
Projects income, tax, expenses, debt, savings, investments, and net worth year by year.
Housing Engine
Models rent, buy, and relocation impact including equity, break-even year, and flexibility loss.
Career Engine
Models career growth, transition timing, income trajectory, and burnout risk.
Business Engine
Models entrepreneurship — runway, break-even, downside exposure, and quit-readiness.
Family Engine
Models marriage, children, and caregiving effects on cash flow, time, and stability.
Health and Stress Engine
Estimates lifestyle sustainability from work hours, commute, and financial pressure, with no medical claims.
Happiness Alignment Engine
Scores how well a path aligns with the user's ranked values.
Risk Engine
Identifies downside risks across finance, career, housing, and health with mitigation steps.
Regret Engine
Estimates regret of acting versus not acting and the top regret driver.
Quest Engine
Turns simulation insight into prioritized action steps with due dates and impact estimates.
Timeline Event Engine
Generates year-by-year life events like promotions, births, payoffs, and risk periods.
Life Weather Engine
Translates simulation state into emotional visual weather from clear skies to storms.
Recommendation Engine
Produces best, safest, and highest-upside paths, often a staged version of a risky move.

How it works

First-time user

Select a decision type
Create two paths
Enter your basic baseline
Rank your values
Generate the first simulation
See the cinematic result reveal
Enter Multiverse View
Adjust assumptions
Save the report
Create quests or upgrade

Couple

Create a shared simulation
Invite your partner
Both rank values separately
See alignment and tension
Compare paths
Generate a shared preparation plan

Advisor

Create a client workspace
Add the client baseline
Build paths with the client
Generate a branded report
Save the client decision plan

How the score works

Life Score

Financial strength
Savings rate, emergency fund, debt ratio, housing burden, and liquidity.
Career momentum
Income growth, promotion potential, skill growth, and burnout risk.
Health sustainability
Work hours, commute, stress load, and schedule control.
Relationship support
Time together, financial pressure, shared values, and partner alignment.
Time freedom
Work hours, commute, flexibility, and control over schedule.
Happiness alignment
Values fit, lifestyle fit, purpose, and peace.
Risk control
Downside protection, reversibility, backup plan, and optionality.
Lifestyle fit
How well the path matches the user's desired way of living.

Key screens

OnboardingGets the user to a first simulation quickly.
DashboardActive simulations, reports, Life Score, and next action.
LifePath BuilderCreate and edit possible future paths.
Simulation ResultsOne path's projected future with scores, timeline, and explanation.
Multiverse ViewCompare multiple futures side by side.
Timeline MapVisualize the future year by year with Life Weather.
Scenario BattleHead-to-head comparison across categories like wealth, freedom, and stress.
QuestsTurn insight into tracked action with priority and impact.
ReportsBeautiful shareable decision report.

Data model

User
UserProfile
SimulationProject
LifePath
SimulationResult
YearlyResult
Quest
Report
SharedLink
Subscription

Screens · 7

LifePath Simulator dashboard showing Best Life Score 82, simulation and quest counts, a recommended next action, and one completed 'Move to Austin vs Stay' simulation. — Simulation dashboard

New Simulation step 1 'What are you deciding?' with a grid of decision tiles (Move Cities, Career Change, Start a Business, Rent vs Buy, and more). — New simulation: pick a decision

New Simulation step 2 Baseline form with fields for age range, income, expenses, savings, debt, housing, relationship, risk tolerance, work hours, and commute. — Baseline inputs

New Simulation step 3 'What matters most to you?' showing selectable value chips like Wealth, Freedom, Family, and Stability, none yet selected. — Values selection

New Simulation Values step with Stability ranked 1 and Wealth ranked 2 among the value chips. — Values ranked

Quests page explaining auto-generated commitments, with one active quest 'Align with your partner' tagged Low priority and relationship. — Quests

Settings and baseline profile

How it is built

A Next.js app backed by PostgreSQL through Prisma. Auth.js handles accounts and sessions; a modular engine produces year-by-year projections and scores; Anthropic Claude adds an optional AI strategist layer; Stripe manages subscriptions; Resend sends verification/reset email; Upstash Redis provides durable rate limiting; Sentry captures errors. Optional integrations activate purely by setting environment variables.