DECODE THE
SIGNAL.
DEFEND THE BASE.
Master Morse Code through 80 levels of tactical defense. Whether you're a ham radio operator sharpening your CW, or picking up the code for the first time — the Koch Method and adaptive AI make every session count. This isn't a tutorial. It's a battlefield.
Not Just Another Learning App
Every mechanic is designed to forge real Morse Code fluency — the kind ham radio operators and amateur radio enthusiasts actually need. No flashcards. No boring drills. Just adaptive gameplay that rewires your brain.
Koch Method Engine
The scientifically proven approach to learning CW at full speed from day one. No slow ramp-up — your ears adapt naturally through gameplay, just like seasoned operators recommend.
Adaptive AI
The game watches how you play. Struggling with a character? It shows up more. Nailing it? Time to push harder. Every session is tuned to you.
80 Levels, 8 Zones
From the Signal Station to the final frontier. Each zone introduces new characters, enemy types, and challenges that scale with your growing skill.
Boss Battles
Eight epic encounters that test everything you've learned. Each boss has unique mechanics that push your decoding speed to the limit.
Little Kid Mode
Pull the grandkids up in your lap. Every input counts as correct — zero frustration, pure discovery. Builds familiarity with Morse sounds through play.
Communication Waves
Hear the Morse, decode it, type the answer. Tap to replay. Auto-reminders and halfway replays keep the flow without breaking immersion.
Chart Your Course Through 8 Zones
Each zone is a gauntlet of 10 levels capped by an epic boss encounter. Clear levels to earn stars, unlock new zones, and push deeper into the signal.
New Morse characters are introduced zone by zone — matching the Koch Method's progressive approach. By the final zone, you're decoding the full alphabet under fire.
Know Your Enemy
Eight distinct hostile types, each designed to test a different dimension of your decoding ability. Learn their patterns or watch your base fall.
SCOUT
Standard speed. Your bread and butter. Don't let them stack up.
TELEPORTER
Blinks across the field. Now you see it, now it's at your gates.
RUSHER
Fast. Aggressive. Decode it quick or take the hit.
PHANTOM
Fades in and out. Hard to target. Demands precise timing.
TANK
Heavy armor. Takes multiple correct decodes to bring down.
LEECH
Drains your base health over time. Remove it or suffer the bleed.
SPLITTER
Destroy one, two more take its place. Clear them fast.
COMMANDER
Buffs nearby enemies. Take it down first or face the swarm.
8 BOSSES. 8 TESTS OF EVERYTHING YOU'VE LEARNED.
Each zone culminates in an epic boss battle. These aren't just harder enemies — they're multi-phase encounters with unique mechanics that demand speed, accuracy, and composure under fire.
- Multi-phase boss encounters that escalate in intensity
- Unique attack patterns force you to decode under pressure
- Boss difficulty scales with your proven skill level
- Visually distinct designs that get more imposing each zone
- Star ratings reward flawless execution
Tactical Power-Ups
Unlocked as you progress, each power-up gives you a strategic edge when the signal gets thick. Use them wisely.
Slow Field
Decelerates all enemies on screen. Buy time to decode under pressure.
EMP Blast
Stuns every enemy in range. Perfect for clutch moments when the field gets overwhelming.
Repair Kit
Restores your base station health. When the red zone hits, this is your lifeline.
Nuke
Obliterates every enemy on screen. The ultimate reset button. Save it for when it matters.
See It In Action
The Koch Method, Gamified
Developed by German psychologist Ludwig Koch, this method is the gold standard for learning Morse Code — and the one recommended most by experienced amateur radio operators. We built an entire game around it.
Instead of slowing the code down (which teaches you wrong), Koch starts at full speed with just two characters. Master those, add one more. Your brain builds the right neural pathways from the start — the same way veteran CW operators learned.
Full Speed From Day One
Characters are always sent at real speed. No crutches, no bad habits to unlearn later.
Progressive Character Introduction
Start with two characters. Each zone adds more as you prove mastery through gameplay.
Instant Recognition, Not Counting
You learn to hear characters as sounds, not dots and dashes. The way real operators do it.
Adaptive Reinforcement
The AI targets your weak spots. Characters you miss appear more until they lock in permanently.
It Learns How You Learn
The adaptive engine tracks your accuracy on every character in real-time. It builds a living profile of your strengths and weaknesses.
Characters you struggle with show up more often. Characters you've mastered appear less. The result: every second of gameplay is targeted practice, not wasted repetition.
Little Kid Mode
Pull the grandkids up in your lap and let them experience the world of Morse Code with zero frustration. Every single input registers as a correct hit.
They get the lights, the sounds, the explosions — all while their brains start making subconscious connections between Morse sounds and letters. Learning disguised as pure fun.
- ✓ Every input counts as correct — zero frustration
- ✓ Full visual and audio feedback on every tap
- ✓ Subconscious Morse Code exposure through play
- ✓ Same great gameplay, judgment-free
YOUR SIGNAL AWAITS
80 levels. 8 boss battles. One mission: master Morse Code. Whether you're studying for your ham radio license or brushing up your CW — the Koch Method has never been this fun.
Available on the App Store.