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This isn't the RadioWave you remember... discover the lore and even more origins behind the story of RadioWave in this thrilling prequel chapter and find out how Tim Spencer started his rampage.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest ends
This is the base game required to play this DLC. Other expansions may also be required.
"Daddy... I'm scared. I don't like the robots..."
"It's ok, Annah... I'm here. I'll always be here for you."
In the prologue to the events of Chapter 1, you play as a young Annah- daughter of Tim Spencer. Your dad always said he'd be there to protect you but this time... he's not. A monster represented as RadioWave is taking over your mind... can you survive the RadioWave?
This DLC for RadioWave includes content for a new Chapter plus exclusive Custom Mode content!
New Perspective: Gone are the days of being Detective Robbie: you're Annah Spencer: daughter of the famous Tim Spencer, AKA the founder of RadioWorld.
25-35 minute runtime chapter~ designed for veteran RadioWave players.
Hug your Plushy RadioWave: he'll let you know when the robot is near!
Discover the lore: Lots of lore to discover in this particular chapter, so get ready!
Two endings: There is two endings- but only one canon ending. Can you change the outcome of what happened?
NEW map exclusive to the DLC: Home.
New Robot: RadioMare.
Lowest tracked price: €2.99 (Jul 7, 2026) · current best: €2.99.
100% positive reviews all-time.
Right now the cheapest offer for RadioWave: Black Signal is €2.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for RadioWave: Black Signal is €2.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when RadioWave: Black Signal drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
