You could have downloaded Openbugs 3.2.3 from our software library for free. This free software was originally developed by OpenBUGS foundation. The most popular versions of the program are 3.2, 3.1 and 3.0. OpenBUGS.exe, VSW3566_E0EA5F6A.exe and VSW6A7E_3C0A3313.exe are the most frequent filenames for this program's installer. You can launch Openbugs on Windows XP/Vista/7/8/10/11 32-bit. Openbugs is included in Education Tools.
From the developer:
BUGS is a software package for performing Bayesian inference Using Gibbs Sampling. The user specifies a statistical model, of (almost) arbitrary complexity, by simply stating the relationships between related variables. The software includes an ‘expert system’, which determines an appropriate MCMC (Markov chain Monte Carlo) scheme (based on the Gibbs sampler) for analysing the specified model.
You may want to check out more software, such as DeadLine, ChaosPro or Equation Wizard, which might be similar to Openbugs.