StarCraft: Ashfall Pits Ten Marines Against the Swarm

A browser-based StarCraft shooter set on the Ashfall Bridge. You command a Terran squad of marines, firebats, and siege tanks, moving left and right to pick reinforcement routes while units auto-fire at the zerg. The game tracks kills, defense line integrity, and a local high score, and it is designed for portrait-mode play.
Logistics says ten men are enough. The bugs apparently didn't get the memo.