RTK13 - Additional scenario "Four Tribes, 6 Countries" 追加シナリオ「四夷六国」KOEI TECMO GAMES CO., LTD.Released 15 Feb 2017·App 544571Steam user reviewsNot enough reviews yet8 so far · summary at 10SteamPeaks RatingNot enough reviews yetRated from 10 reviewsHow it worksPlaying now—First samples arriving—of peakAll-time peak—Tracking since the first sample