Killzone 2 is an action-packed first person shooter video game developed by Sony. Set two years after the Helghast assault on Vekta, players take on the role of Sev, a battle-hardened veteran and member of a special forces unit known as the Legion. Their mission is to defeat the enemy's home world of Helghan and capture its leader, Emperor Visari. Upon their arrival in Pyrrhus, they soon discover that not only have the Helghast adapted to their new environment, but they have also gained access to powerful sources of energy which can be used against them. As Sev leads his squad through treacherous conditions in order to complete their mission, they realize that their toughest challenge may not come from enemy forces but from nature itself.

Killzone: Shadow Fall is a video game set thirty years after the events of Killzone 3, in a time of planetary colonization. The story focuses on the conflict between two rival colonist factions, the Vektans and Helghast, who have been separated by an enormous security wall for three decades. Players take control of Lucas Kellan, a member of the military intelligence unit dubbed Shadow Marshals tasked with protecting fragile peace between these two sides. During his missions he must be prepared to face all kinds of combat situations as any misstep could lead to mutual destruction.