GM Tygress I – Rimward Frontier Outpost

Classification: Frontier World
System: Tygress System, Drusus Marches, Calixis Sector, Segmentum Obscurus reddit.com+12calixipedia.fandom.com+12ultima-tectum.com+12

🌍 World Overview

Tygress I lies on the rimward edge of the Drusus Marches, marking the boundary between Imperial law and the vast, untamed depths of the Halo Stars and Koronus Expanse reddit.com+6calixipedia.fandom.com+6ultima-tectum.com+6.

⚔️ Historical Significance

• During the Sinner’s Plagues crisis, Tygress I was the site of a pivotal confrontation between the church-led Expedition of the Divine Light of Sollex and the corrupt mechanicus warfleet of Magos Biologis Sar Resque ffg-forum-archive.entropicdreams.com+9calixipedia.fandom.com+9ultima-tectum.com+9.
• The ensuing battle had significant consequences for control of the Tygress System’s frontier—a vanguard against biohazard and heretek threats ffg-forum-archive.entropicdreams.com+5calixipedia.fandom.com+5ultima-tectum.com+5.

🏞️ Frontier Role

• As a Frontier World, Tygress I is lightly colonized and serves as a docking point for exploration, Xenos risk scouting, and warp navigation prep before entering the Koronus Expanse.
• It is lightly governed, primarily by local Administratum governors with support from occasional Imperial Guard patrols and Ecclesiarchal missionary activity.