Alone against all, you are the sentry and the last bulwark against the invasion of evil monsters about to devastate the kingdom.
Perched on your tower and armed with a simple bow, you'll have to fend off countless waves of enemies.
Fortunately, your power will constantly grow and you will learn fire, ice and unholy spells that will greatly help you in your task.
Sentry Knight 2 is one of the best games of its type, featuring a pretty long solo campaign, many upgrades and a "Survival" mode to unlock by completing the game.
See also:
Sentry Knight 1