The Strider in the video game series "Half-Life" is a three-legged combine Synth that was introduced in "Half-Life 2." Striders serve as the Combines primary heavy ground assault unit and are capable of hunting down hostile combatants in confined streets and open areas.
The Strider's body is surrounded in a smooth brown carapace or exoskeleton. Its ranged armaments consist of a head-mounted rapid firing pulse cannon and a heavier warp cannon that is mounted underneath its body. The Strider has sharp spikes and hair like spines on its legs that can be used up close in melee engagements. These large and powerful units are mainly used in support of smaller units of soldiers when extra firepower is needed to destroy buildings or root out well entrenched enemy soldiers.