Dud

Strategic planning is crucial on both offense and defense. In the game starring our hero Dud, he must protect a specific territory from enemy invasions which occur from all sides. At launch, Dud has only his personal weapon plus one solitary turret for protection. However, as enemies are defeated they leave behind loot that can be picked up to upgrade your offensive positions.
This could mean constructing towers where stronger turrets might reside or enhancing Dud's individual defenses with advanced equipment - more potent weapons perhaps or superior ammunition types? The beauty of it all; an advance warning system symbolized by signal-crosses in-game gives enough notice allowing preemptive preparations against incoming foes' attacks.