Build skills.
Defend the host.

Select a turret, then tap or click off the path to build. Select an existing turret to upgrade. Keyboard: Tab to the board, arrows to move, Enter to place. You can build during waves. Use Pause defense to take a break. Questions also pause combat. Close a question to resume; the boss remains shielded until three different boss questions are correct.

These command turrets are fictional metaphors. No PowerShell commands execute in your browser or on your computer. For example, Where-Object filters objects; it does not slow real processes.

New lesson progress grants a small combat bonus. Repeating mastered questions grants no duplicate XP, credits, or buffs. Reset clears the current battlefield and buffs, while earned learning stays saved. Earth Guardian adds 200 starting credits to each new attempt.