No Man's Sky is an action-adventure survival game set in a procedurally generated universe containing over 18 quintillion planets. Players explore star systems, gather resources, trade with alien species, and upgrade their equipment while following an overarching narrative involving a mysterious entity called the Atlas. The game is built around four pillars: exploration, survival, combat, and trading. Since its 2016 launch, it has received numerous free updates adding multiplayer, base building, fleet management, and virtual reality support.