Island Colonizer

Island Colonizer was one of those straightforward action games you'd find during the Flash era. It didn't try to be anything more than a quick, engaging way to pass some time in a browser window.

You control a lone soldier defending a small island. You move with the keyboard and aim with the mouse, firing at waves of soldiers that arrive by boat. Your main goal is to survive as long as possible, picking up weapons and power-ups that enemies drop. The pacing is constant, with little respite between assaults, and the difficulty builds steadily as more enemies appear. It feels like a tense, scrappy fight for territory where every shot counts.