Ecco the Dolphin: Defender of the Future (Dreamcast) — Price Guide & Live Deals
Live Dreamcast Ecco the Dolphin: Defender of the Future deals across loose, CIB and sealed, what a fair asking price looks like, and listings to avoid.
Right now: Loose prices roughly flat over 90 days, 43 current qualifying listings.
Current qualifying listings
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Ecco the Dolphin Defender of the Future CIB Sega Dreamcast Tested Working
$28.00 USD
★ 100% · 1,062 ratings
Listed today · checked 7h ago
Ecco the Dolphin: Defender of the Future Sega Dreamcast, 2000 – Tested
$29.99 USD
+$5.75 shipping
★ 99.8% · 5,747 ratings
Listed yesterday · checked yesterday
SEGA Ecco the Dolphin: Defender of the Future Dreamcast NTSC-U/C 2000 Manual
$26.00 USD
Shipping calculated
★ 100% · 601 ratings
Listed 3 days ago · checked 3 days ago
Ecco the Dolphin Defender of the Future (Sega Dreamcast, 2000)
$34.99 USD
Free shipping
★ 99.7% · 13,103 ratings
Listed 8 days ago · checked 8 days ago
Ecco The Dolphin : Defender Of The Future ( Sega Dreamcast ) Tested No Case (T09
$17.99 USD
★ 99.6% · 2,974 ratings
Listed 9 days ago · checked 9 days ago
ECCO THE DOLPHIN: DEFENDER OF THE FUTURE - SEGA Dreamcast Game - Acceptable Disc
$28.53 USD
Shipping calculated
★ 100% · 867 ratings
Listed 12 days ago · checked 12 days ago
Ecco The Dolphin Defender Of The Future Sega Dreamcast 1998 Complete Tested
$34.00 USD
Free shipping
★ 99.9% · 4,473 ratings
Listed 14 days ago · checked 14 days ago
Sega Dreamcast Game ECCO The Dolphin Defender Of The Future CIB Complete In Box
$30.00 USD
Shipping calculated
★ 99.7% · 19,163 ratings
Listed 14 days ago · checked 14 days ago
Ecco the Dolphin: Defender of the Future - Sega Dreamcast Free Shipping
$34.20 USD
Free shipping
★ 99.5% · 23,491 ratings
Ecco the Dolphin Defender of the Future Dreamcast · 10/20/2026 7:49 AM
Sega Dreamcast Ecco The Dolphin Defender of the Future 51033 Standard Tested VGC
$19.99 USD
Free shipping
★ 99.4% · 3,429 ratings
Ecco the Dolphin Defender of the Future Dreamcast · 10/20/2026 7:49 AM
SEGA Ecco the Dolphin: Defender of the Future Dreamcast Manual Case Disc E
$25.00 USD
★ 100% · 31 ratings
Ecco the Dolphin Defender of the Future Dreamcast · 10/20/2026 7:49 AM
Ecco the Dolphin: Defender of the Future - Sega Dreamcast - CIB
$24.99 USD
+$6.50 shipping
★ 100% · 1,126 ratings
Ecco the Dolphin Defender of the Future Dreamcast · 10/20/2026 7:49 AM
Roughly one qualifying listing every 3.8 days.
Asking-price ranges by condition
| Condition | Min | 25% | Median | 75% | Max | N |
|---|---|---|---|---|---|---|
| Loose | $12.99 | $14.99 | $19.99 | $29.99 | $34.99 | 23 |
| Cib | $24.99 | $30.00 | $30.95 | $39.99 | $85.00 | 14 |
| Sealed | $59.99 | $69.99 | $99.99 | $119.95 | $139.99 | 6 |
Asking prices of currently-active listings. Not sold-price data.
Full asking-price history by condition →
Is this a good price?
Enter a price to see where it falls among current Loose asking prices for Ecco the Dolphin: Defender of the Future (Dreamcast).
How we filter
Every feed has its own filter, tuned by hand for this one game. Before any change goes live, those filters are tested against thousands of real eBay listing titles. Every night, each feed is checked against every other deal page in its category, so a listing for a different game that slips in gets flagged and fixed instead of quietly shown.
Of the 18 listings we observed for this game in the last 30 days, we filtered out 10 of 18 (~56%) for quality reasons. The remaining 8 are what we'd actually surface.
- 6 caught by a junk-listing guard
- 1 seller positive-feedback percentage too low
- 1 seller had too few feedback ratings
- 1 priced above the curated ceiling
- 1 shipped from a region we exclude
What the feed excludes
An eBay search for Ecco the Dolphin: Defender of the Future (Dreamcast) returns far more than the game itself: controllers, T-shirts, strategy guides, imports and repro carts all mention it in their titles. These are the 104 terms we filter out to keep this feed to the real thing. A listing whose title contains any of them never reaches the feed, the price table or an alert. Many look unrelated to Ecco the Dolphin: Defender of the Future (Dreamcast) because they are: that's the noise.
Other titles & look-alikes 15
- -burned
- -cdr
- -cd-r
- -genesis
- -sega cd
- -game gear
- -master system
- -ecco jr
- -tides of time
- -sega saturn
- -versus books
- -ozshop
- -sample
- -review disc
- -re-po
Bootlegs & repros 4
- -custom case
- -repro
- -reproduction
- -repo
Broken, untested & empty listings 15
- -for parts
- -not working
- -non-working
- -non working
- -broken
- -as is
- -as-is
- -untested
- -doesnt work
- -does not work
- -not tested
- -parts only
- -no game
- -game not included
- -cart not included
Imports & regions 9
- -japanese
- -ntsc-j
- -famicom
- -jpn
- -jp
- -pal
- -eur
- -uk
- -japan
Lots & multi-item listings 8
- -lot
- -bundle
- -collection
- -set of
- -multiple games
- -3 games
- -4 games
- -5 games
Accessories, merch & paper 53
- -controller
- -headset
- -headphones
- -plush
- -figure
- -figurine
- -keychain
- -sticker
- -charger
- -cable
- -adapter
- -backpack
- -wallet
- -shirt
- -hoodie
- -jersey
- -poster
- -art book
- -artbook
- -soundtrack
- -vinyl
- -statue
- -amiibo
- -funko
- -pop figure
- -mousepad
- -lanyard
- -badge
- -trading cards
- -tcg booster
- -bookmark
- -instruction booklet
- -promo item
- -promotional
- -insert only
- -flyer
- -pamphlet
- -display card
- -demo cart
- -kiosk
- -case only
- -case-only
- -clamshell only
- -box and case
- -replacement box only
- -perfect guide
- -strategy guide
- -guide book
- -nfr
- -hat
- -pin
- -ost
- -art
How often qualifying deals appear
- 3 in the last 7 days (~0.43/day)
- 8 in the last 30 days (~0.27/day)
- 8 in the last 90 days (~0.09/day)
Ecco the Dolphin: Defender of the Future: collector & reseller spec sheet
- Release & save: Defender of the Future is the Dreamcast entry in the series, released in 2000. It saves to a memory card (VMU) rather than the disc. Check that the label and case carry the US (NTSC) release and the Rated E mark.
- Print variants: an original retail print and later reprints may both turn up; asking prices can differ between them. Compare the disc and case against a known authentic photo before paying a premium for either.
- Don't confuse it with the Genesis original. The 1992 game is a separate page: Ecco the Dolphin (Genesis). This page tracks only the Dreamcast sequel.
- Listing traps: while tuning, the feed turned up strategy guide books, sample or review discs, and PAL copies listed under the same title. Disc-only listings are common, so read whether the case and manual are included before comparing against complete prices.
Buying Dreamcast games: what to check by condition
These checks apply to every Dreamcast disc. The item notes above cover what is specific to this game.
Loose (disc only)
- Ask for a clear photo of the data side under light. Light surface scratches usually play; deep or circular scratches often don't.
- Check the label art and the printing in the center ring against a known-authentic disc. Burned copies and reprinted labels are the main fakes.
- "Resurfaced" means the disc was polished. It is usually fine to play but worth less to collectors.
CIB (complete in case)
- Confirm the case, front art and manual are all shown, and that the art matches the disc's region.
- Cracked cases are cheap to replace; missing or reprinted cover art and manuals are what cost money.
- For multi-disc games, make sure every disc is pictured.
Sealed & graded
- For a graded copy, look the certification number up on the grading company's own site and confirm the photos match the slab you are buying.
- For an ungraded sealed copy, compare the wrap and seal pattern against a known factory-sealed example. Resealing is common, and a reseal on a loose game is worth a loose price.
- Ask for photos of every side, the seams and any price stickers. Refusing extra photos on a sealed listing is a red flag on its own.
FAQ
How much is Ecco the Dolphin: Defender of the Future (Dreamcast) worth right now?
How do I get notified when a new Ecco the Dolphin: Defender of the Future (Dreamcast) listing comes in under my price?
How often do qualifying deals appear?
More from this franchise
More Sega Dreamcast deal pages
Data freshness: last snapshot 2026-11-06 00:00 UTC . Atom feed