LyceumMuJoCoViz is a component package of the Lyceum ecosystem. It provides an interactive visualizer for viewing MuJoCo dynamics models provided by MuJoCo.jl, as well as environments created with LyceumMuJoCo.jl. LyceumMuJoCoViz provides several features, including the ability to visualize trajectories and interact with control policies in real time. For more information and examples, see the documentation.