Valuing real options is challenging, because they depend on multiple factors and assumptions, and they often do not have observable market prices. However, there are some methods and tools that can help you estimate the value of real options, such as: Decision trees, which are graphical representations of the possible outcomes and choices in your project, along with their probabilities and payoffs. Decision trees can help you visualize the structure and logic of your options, and calculate their expected value. Binomial models, which are numerical models that simulate the possible paths and values of your project over time, using discrete steps and branches. Binomial models can help you account for the uncertainty and volatility of your project, and calculate the value of your options at each step. Black-Scholes models, which are mathematical formulas that derive the value of your options based on the current value, volatility, risk-free rate, time to expiration, and exercise price of your project. Black-Scholes models can help you apply the principles of financial option pricing to your real options, and estimate their value in a continuous setting.