John Madden Duo CD Football

This football simulation CD game for the TurboDuo was the first and only installment of the Madden franchise on the TurboGrafx systems.

The TurboGrafx-CD (1989) was one of the earliest CD-ROM add-ons for a home console, expanding the TurboGrafx-16's library with games too large for cartridges. Its already-niche parent platform combined with the added cost of the CD add-on kept the North American audience small, making complete TurboGrafx-CD sets a genuinely rare find for collectors today.

Gamevaro tracks John Madden Duo CD Football for TurboGrafx CD with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.

Adding John Madden Duo CD Football to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically.

Only a handful of market sales have been tracked for John Madden Duo CD Football, suggesting it doesn't trade hands very often — a sign of relative scarcity compared to more common TurboGrafx CD titles.

Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.

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