Sentinel: Drone Defense

Sentinel: Defense Grid is a tactical defense game that combines radar management, defensive systems, and resource planning.

Your mission is to protect critical facilities, detect incoming drone threats, and build an effective defense network. But not every enemy appears on your radar. Threats outside radar coverage remain invisible, and your defensive systems cannot engage what they cannot detect.

Before each stage, plan your defense carefully. Place radars, rapid-fire defense systems, heavy interceptors, missile batteries, and electronic warfare systems in the right positions. Once the stage begins, watch your defense network respond to the incoming attack.

Each defense system has a different role:

• Detect incoming threats with radar
• Stop swarm attacks with rapid-fire defenses
• Counter heavily armored targets with heavy interceptors
• Engage distant enemies with missile batteries
• Disrupt weaker drones with electronic warfare systems

Defense is not only about firepower. Ammunition is limited, systems can be damaged, and the credits you earn after each stage must be spent carefully. Repair damaged units, refill ammunition, upgrade your systems, or relocate them before the next attack.

If the Command Center is destroyed, the campaign ends. Losing other critical facilities, such as the Power Plant or Communication Center, can weaken your entire defense network. Radar performance may drop, weapons may fire more slowly, or targeting information may be delayed.

Each new stage brings stronger and more complex attacks. Scout drones, attack drones, heavy targets, swarms, stealth units, and jammers will challenge your defenses in different ways.

Enemy attacks are procedurally generated, creating different combinations of threats, attack directions, and intensity in every campaign. Every 10 stages, prepare for a major assault that will push your defenses even further.

Earn credits by surviving stages, improve your defensive systems, and unlock new technologies. When your campaign ends, the Blueprint points you earn remain permanent. These upgrades provide small advantages in future campaigns and help you survive longer with each new attempt.

FEATURES

• Radar-based detection and visibility system
• Grid-based tactical defense placement
• Multiple defensive systems with unique roles
• Electronic warfare mechanics
• Ammunition, repair, and economy management
• Continuously increasing difficulty
• Procedurally generated attack waves
• Major assaults and boss stages
• Permanent Blueprint upgrades
• CRT terminal and tactical radar aesthetic
• Single-player gameplay
• No internet connection required

Build your radar. Establish your defense network. Control the skies.