Necrogen

Watchtower defense

Necrogen is a single-player first-person shooter about defending a forest watchtower from waves of monsters. You start with a pistol and stop ground enemies from damaging the tower. You also have a separate health bar to manage when flying gargoyles enter the fight and target you.

Between rounds, you can repair the tower, resupply, and spend combat earnings on ammunition and weapon upgrades. The tower’s condition and your own health are separate concerns, so you’ll need to watch both while choosing which enemies to attack first.