# Founders Rehearsal (창업 리허설)

> Founder decision rehearsal and co-founder startup simulation. "Rehearse the decisions that can make or break your startup." Founders Rehearsal helps founders explore startup scenarios, evaluate co-founder risks, examine equity decisions, and understand how early choices can affect a company's future.

Canonical website: https://foundersrehearsal.com/
Korean name: 창업 리허설. Created by Zion Bong (봉민균). Free, no sign-up, browser-only storage, rule-based (not AI-powered). Educational simulation: it does not predict startup success or relationship failure and is not legal or tax advice.

## Tools
- [Simulator](https://foundersrehearsal.com/): week-by-week startup simulation from formation to exit with a simulated co-founder, equity, funding rounds, board votes, conflict, separation and a post-mortem.
- [Founder equity calculator](https://foundersrehearsal.com/founder-equity-calculator/): transparent contribution-based split (cash, hours, salary forgone, role, expertise, idea) with adjustable weights and a vesting table.
- [Co-founder risk assessment](https://foundersrehearsal.com/cofounder-risk/): 12-question checklist across nine agreement areas; highlights undiscussed areas, no prediction.

## Explainers
- [Founders' dilemmas](https://foundersrehearsal.com/founders-dilemma/): seven recurring founder trade-offs.
- [Startup simulation](https://foundersrehearsal.com/startup-simulation/): what the simulator models and its limits.
- [Methodology](https://foundersrehearsal.com/methodology/): model assumptions; balance figures are game design targets, not empirical statistics.
- [About](https://foundersrehearsal.com/about/)

## Guides
- [Co-founder agreement checklist](https://foundersrehearsal.com/guides/cofounder-agreement-checklist/)
- [Vesting and founder separation](https://foundersrehearsal.com/guides/vesting-and-founder-separation/)
- [When a co-founder leaves](https://foundersrehearsal.com/guides/when-a-cofounder-leaves/)

## Policies
- [Privacy](https://foundersrehearsal.com/privacy/) · [Terms](https://foundersrehearsal.com/terms/)