Portal Defenders Tower Defense

The Enrichment Center requires a new set of tests. Your objective: construct a flawless defensive gauntlet. Welcome to Portal Defenders Tower Defense Unblocked, a strategic fan-made game that brilliantly merges two genres. You must stop waves of rogue test subjects by building a deadly maze using iconic Aperture Science technology. Place classic Sentry Turrets for reliable firepower, and master the ultimate defensive tool: the Portal Gun itself, used here to teleport foes back to the start. Every placement and upgrade requires careful tactical thinking. You can begin designing your perfect test chamber on Unblocked Games 6X. Can you achieve a 100% subject containment rate?