Helldivers 2 is a cooperative third-person shooter in which squads of up to four players are deployed from orbit onto hostile planets to complete strategic missions. Players select loadouts of weapons, armor, and stratagems that allow them to call in orbital strikes, supply drops, vehicles, and turrets during combat. Friendly fire is always active, requiring coordination between teammates. The game features a persistent galactic war where community-wide performance determines which planets are liberated or lost.