Captain Sonar: Upgrade One Expansion

The silent war that rages beneath the waves intensifies and takes a radical and...strange...turn.

The engineers at Archer Inc., the most powerful weapons conglomerate in the world, have discovered new, innovative materials and heretofore unknown energy sources in the deepest and most secret of oceans.

Thanks to tremendous research and development progress in recent months, the submarines now carry unstable weapon prototypes. On the fringe of abyssal war, exploration vessels take advantage of these emerging technologies to dive ever deeper and find new navigational routes.

Mechanisms:• Grid Movement• Partnerships• Role Playing• Secret Unit Deployment• Simultaneous Action Selection

Contents

• 20 Large Role Sheets
• 2 Weapons Sheets
• 8 Erasable Markers