SOS is a multiplayer co-op and head-to-head game themed after a reality TV show where you find yourself on a deserted island with more than a dozen other players, and you must find a relic and escape. The core gameplay is diverse, from finding weapons and items to interacting with other players, and there are multiple ways to win.
Save Yourself... Maybe Others, Too
In SOS, you can only communicate with other players who are within shouting distance. This can lead to tight-knit groups and tense standoffs both. Indeed, whether you cooperate with, fight, or even betray other players can mean the difference between success and failure, and how you do it. The game itself supports many different methods of play, and it's well-programmed to allow them all comfortably.
Everything in Moderation
Overall, SOS's issues are rarely a matter of core gameplay. The game runs and plays smoothly. The player base can be difficult to deal with, however, and the admin team has a huge amount of control over whether and how you play. Before purchasing it can help to look at more recent user reviews, to see how the player base and admin team has changed; beyond that, you're good to go.