  The recent launch of JWST has ushered in a new era of high-redshift astronomy
by providing detailed insights into the gas and stellar populations of galaxies
in the epoch of reionization. Interpreting these observations and translating
them into constraints on the physics of early galaxy formation is a complex
challenge that requires sophisticated models of star formation and the
interstellar medium (ISM) in high-redshift galaxies. To this end, we present
Version 1 of the Sphinx$^{20}$ public data release. Sphinx$^{20}$ is a full box
cosmological radiation hydrodynamics simulation that simultaneously models the
large-scale process of cosmic reionization and the detailed physics of a
multiphase ISM, providing a statistical sample of galaxies akin to those
currently being observed by JWST. The data set contains $\sim14,000$ mock
images and spectra of the stellar continuum, nebular continuum, and 52 nebular
emission lines, including Ly$\alpha$, for each galaxy in Sphinx$^{20}$ with a
star formation rate $\geq0.3\ {\rm M_{\odot}\ yr^{-1}}$. All galaxy emission
has been processed with dust radiative transfer and/or resonant line radiative
transfer, and data is provided for ten viewing angles for each galaxy.
Additionally, we provide a comprehensive set of intrinsic galaxy properties,
including halo masses, stellar masses, star formation histories, and ISM
characteristics (e.g., metallicity, ISM gas densities, LyC escape fractions).
This paper outlines the data generation methods, presents a comparative
analysis with JWST ERS and Cycle 1 observations, and addresses data set
limitations. The Sphinx$^{20}$ data release can be downloaded at the following
URL: https://github.com/HarleyKatz/SPHINX-20-data
