The paper reports the strong light-matter coupling and formation of microcavity polaritons in a two-dimensional (2D) atomic crystal of molybdenum disulfide (MoS₂) embedded in a dielectric microcavity at room temperature. The authors demonstrate a Rabi splitting of 46 meV and highly directional emission from the MoS₂ microcavity, resulting from the coupling between 2D excitons and cavity photons. This work is significant for realizing practical polaritonic circuits and switches due to the realization of strong coupling effects in a disorder-free potential landscape. The study highlights the unique properties of 2D materials, particularly TMDs, which exhibit enhanced direct bandgap photoluminescence, small effective exciton Bohr radius, and highly anisotropic emission. The experimental results are supported by theoretical calculations and simulations, confirming the formation of strongly coupled polariton states in the microcavity.The paper reports the strong light-matter coupling and formation of microcavity polaritons in a two-dimensional (2D) atomic crystal of molybdenum disulfide (MoS₂) embedded in a dielectric microcavity at room temperature. The authors demonstrate a Rabi splitting of 46 meV and highly directional emission from the MoS₂ microcavity, resulting from the coupling between 2D excitons and cavity photons. This work is significant for realizing practical polaritonic circuits and switches due to the realization of strong coupling effects in a disorder-free potential landscape. The study highlights the unique properties of 2D materials, particularly TMDs, which exhibit enhanced direct bandgap photoluminescence, small effective exciton Bohr radius, and highly anisotropic emission. The experimental results are supported by theoretical calculations and simulations, confirming the formation of strongly coupled polariton states in the microcavity.