Dead Seek is a free online 3D zombie shooter where you hold off relentless waves of undead across dangerous, infected zones crawling with enemies. Your job is simple: stay alive. Pick up weapons, line up your shots, and keep moving because the hordes never stop coming. Every kill buys you time, and every second counts.

What makes Dead Seek stand out is the weapon upgrade system. You start with basic firepower, but grinding through waves unlocks better guns and improved stats that genuinely change how you play. Switching up your tactics matters too – some zones reward aggressive rushes while others demand you hold a defensive position and control choke points. The 3D visuals are sharp and punchy, making each headshot feel satisfying. With endless mode keeping the pressure constant, there is always a reason to push for one more round.

This game hits the sweet spot for fans of free zombie shooting games, browser-based horror shooters, and arcade-style wave defense games. If you enjoy titles like zombie survival shooters or undead hunting games with weapon progression, Dead Seek delivers that same addictive loop without any install required. It is a solid pick for casual players who want quick action and for shooter fans chasing high scores in endless zombie defense gameplay. Jump in, upgrade your arsenal, and see how long you can last.