If you came here looking for a deep ATC simulator with handoffs, departures, and stack management, Signal//Lock is not that. Those games take real time to learn. Signal//Lock keeps the part most people actually wanted from ATC games — reading a radar under pressure — and strips the rest. The result plays in five minutes and demands the same kind of attention.

What it shares with ATC games
- A sweeping radar dish. Contacts are only visible as the sweep line passes over them. You learn to plan ahead.
- Saturation as the loss condition. Real ATC loses control when the screen gets too dense. Signal//Lock has the same meter, made explicit.
- Audio cues that mean something. Lock-on beeps, alert tones, low-hum ambient. You can play partly by ear.
- Stage modifiers. Wind drift on parachute stages, vector overflow that saturates the screen, classified intercepts that flip the radar — the same kind of "the rules just changed" pressure ATC controllers know.
What it deliberately leaves out
- No flight plans, no clearances, no callsigns to type.
- No multi-screen sectors. The whole game fits one round dish.
- No accumulating career or campaign. Each run starts clean.
Who it's for
Players who like the feel of an ATC scope — the sweep, the density, the moment a screen tips from "manageable" into "behind" — but want a five-minute arcade run instead of a forty-minute shift. If you've spent time with the more serious ATC simulators and want something to keep your reading speed sharp between sessions, this is built for that.
How a round goes
- The sweep rotates. Contacts appear as the line touches their bearing.
- You identify matched pairs and lock them before they decay.
- Each unlocked contact pushes the saturation meter up.
- Hit 100% saturation and the dish overloads — life lost. Three lives per run.
- Survive enough stages and the rule set rotates: vector overflow, fever streaks, parachute drift, classified recall.
Open the radar
Start a run now — no install, no account. Or read the full mechanics guide if you want every overlay explained first.
More to read
- Why it works as a radar game — the sweep, the decay, the saturation meter.
- All nine stages — full rule sets per stage.
- Vector Overflow strategy — surviving the densest stage.