Sentry Knight

Sentry Knight is a defense game where a single unit, the Sentry Knight, needs to defeat incoming enemies in multiple waves. The game is played on a single screen and the knight is positioned in a tower on the right. Enemies appear from the left and to progress to the next location on the world map multiple waves of enemies need to be defeated before they bring down the tower. The knight uses a bow to shoot arrows and this is done automatically, the player only needs to aim.

By defeating enemies golds is earned, and experience is to level up. With each new character level a talent point is provided, used to unlock a talent (skill) from three talent trees: fire, ice and demon. These provide both defensive and offensive abilities, such as fireballs, frigid blast spells, reducing incoming damage, or summoning a gargoyle unit to help defend the tower. Some talents can be upgraded multiple times. Only five talents can be equipped during a game and the player can drag these to the slots near the top of the screen where they are activated while fighting by clicking them. Gold can be spent at the blacksmith to upgrade the bow, arrows, tower and torch. The tower has a certain amount of health and when damage is dealt to it a blood meter fills up. When full, blood heal can be used to restore some health. Next to surviving the waves there are optional star objectives for each location. When they are completed additional bonuses such as talent points are provided. The game can be played in a normal or a baby (easy) mode.