Natural-Selection (NS) is a multiplayer-only Half-life mod where one team plays marines and the other plays aliens. The humans must keep their cool and work together to assault an alien-infested
spacecraft or colony. Marines vs. marines and aliens vs. aliens scenarios will also be supported in the near future. "First-person strategy" with a real resource model and consequences for actions. Both sides are genuinely different and together they accommodate different play styles: Marines:: Fighting skill is less important, strategy and communication take its place. Playing as a marine will be a tense experience with methodical planning and strategy, interrupted with action. Aliens:: Playing as an alien will be an intense action experience, rewarding reflexes and alien heroics. Communication and coordination don't require typing. NS includes easy to use and intuitive menus, and commands. Being the commander on the marines is a seamless experience, that requires almost no extra knowledge. The game even has small pop-up hints that help beginners to play.