StarPerc Dice Mechanic

From publisher blurb: One of the drop in resolution sub-systems for StarCluster 3, In Harm's Way: StarCluster, and Commonwealth Space. The StarPerc Sub‐System uses only percentile dice to play. All rolls are made with percentiles, and the sub‐system uses the StarPerc Character Sheet along with the Character Generation Worksheet. User note: freely available on the publisher website as a distinct file.