
$0.99
About
Orbital Defense Protocol is a fast, focused, portrait-mode tower defense for iPhone and iPad. Place turrets, set traps, call orbital strikes, and hold the line through 10 sections of escalating hostile waves.
CORE LOOP
• Drag turrets onto the grid during prep. Tap to upgrade, sell, or specialise.
• 6 archetypes: Pulse, Railgun, Frost, Blast, Gatling, and Command. Each upgrades in three channels (Damage / Range / Rate) and forks into a permanent specialisation at tier 6.
• 5 trap and ability cards: Spike Strip, Slow Goo, Knockback Plate, Orbital Strike, and Stasis Field. Drag to deploy.
• Tap MONSTERS to see the next wave's hostile profile — HP, speed, armor, shield resist — and pick the right damage type.
DESTRUCTIBLE BATTLEFIELD
• Walling off the path is legal. Hostiles will pound your turrets to rubble — every tower has hull HP, every enemy has melee DPS.
• Rocks blocking your line of fire? Tap them. Spend $50, clear the tile, reroute the enemy path.
• 7 hostile archetypes: BASIC, FAST, TANK, FLIER, SHIELDED, HEALER, BOSS. Each has its own counter.
CAMPAIGN
• 10 sections × 20 waves = 200 levels.
• 5 difficulties from Easy to Extreme — adjustable per run.
• Persistent top-scores leaderboard tracks your best clears and wipes.
NO FRICTION
• No ads.
• No in-app purchases.
• No network required — plays anywhere.
• No data collected, no analytics, no tracking.
Built for one-handed portrait play. Boots in seconds, drops you straight into the build phase. Set a difficulty, tap ENGAGE HOSTILES, and defend.
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What's New in Orbital Defense Protocol
1.0
May 5, 2026



