We present CosmoGridV1: a large set of lightcone simulations for map-level cosmological inference with probes scale structure. It is designed parameter measurement based on Stage-III photometric surveys non-Gaussian statistics and machine learning. CosmoGridV1 spans the $w$CDM model by varying $\Omega_m$, $\sigma_8$, $w_0$, $H_0$, $n_s$, $\Omega_b$, assumes three degenerate neutrinos $\sum m_\n...