Essentially, Undead Invasion is a 2D side-scrolling shooter in which you have to defend yourself against a continually increasing enemy horde. However, one of the main features of this game is the mix of:
Your base is a ruined orphanage, a scary yet important place that always informs your decisions between waves. With limited supplies and ever-increasing dangers, staying alive becomes a risk that you need to calculate.
The deserted orphanage plays not only the role of an atmospheric place—it is the main strategic point of the game. It is from here that you manage upgrades, prepare defenses, and choose the best way to spend the little resources you have. The pressure increases with every wave as the country around you collapses, thus creating a strong sense of urgency.
The whole world that is created around you not only enhances the branding but also keeps you on your toes, making the experience feel intense, emotional, and extremely challenging.
The gameplay is typical of a side-scrolling shooter:
Only the players with the best precision and timing will last through the run.
You will adopt a tower-defense strategy during the time between the waves:
A smart placement can be what makes the difference between holding the line and total collapse.