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To bring you the old school 2D space arcade feeling in a modern look and feel. Whether you like the hard core style of the old days, or you have become the more lay back type, shoot your way home at the fun rate for you. Upgrade your ship on the way home, to get ready for the final battle. Have fun!
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 starts Jul 20, 2026
Try this game before buying.
You are given control over a spaceship, equipped with a Dark Drive. To make the things that happen in dark space comprehensible for the human mind, scientist have managed to simply the control. They designed an interface that will let you interpret flying through dark space, like it is just a colorful vertical scrolling shoot'em up.
In this game you:
will encounter dozens of different enemies, all with their own behavior
have to fight a boss at every the end of every second level
choose upgrades to help you survive each level
Right now the cheapest offer for Double D. F. is CA$9.99 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 Double D. F. is CA$9.99 (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 Double D. F. 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.
