Orbital Defense Protocol vs Grid Defense

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.

GRID DEFENSE is a fast, hand-tuned tower defense game about one simple job: hold the line. Six towers. Seven breeds of creep. One winding path. Place your defenses, upgrade under pressure, and stop everything the grid throws at you across 25 escalating waves — then push into endless mode. FREE TO START Download and play the first 10 waves free. Clear wave 10 to unlock the complete game with a single one-time purchase. No ads. No timers. No subscriptions. THE FULL GAME UNLOCKS • All 25 waves + endless mode • A second battlefield — The Quarry, where terrain fights back. Golems terraform the ground as they march, ore pockets pay out gold when cracked, and a keystone wall splits the map — hold it or watch the shortcut open • Tower-smashing GOLEMS — armored bruisers that stop to wreck your towers • WARDENS that raise energy shields — burst them before they recharge • A deployable DWARF hero — a roaming gunner only the wasps can touch, who levels up to repair wrecked towers and mine ore for gold • Bosses and the final victory stand • The global online leaderboard — submit your score and claim your rank SIX TOWERS, EVERY ONE USEFUL Gunner, Cannon, Frost, Venom, Tesla, Sniper — each with upgrades and a role. Freeze a swarm, chain-zap a cluster, poison the tanks, or snipe through armor. There's no single right build. AN ORIGINAL SCORE A title theme by IVEM BEATS plays you in, and every tower fires its own sound — know what's shooting without looking. BUILT FOR TOUCH Designed for the phone from the ground up — tap to build, tap to upgrade, pinch and pan the battlefield. The board fills your screen edge to edge. Landscape, smooth, and playable offline. No ads. No subscriptions. No login. Just you, the grid, and the line you have to hold.