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Seaman (Dreamcast) — Price Guide & Live Deals

Live US Seaman Dreamcast deals across loose, CIB and sealed: fair asking prices, the microphone question, and the Japanese copies and accessories to skip.

Right now: Loose prices roughly flat over 90 days, 39 current qualifying listings.

Median ask
$70
Loose · n=23
Listings now
39
qualifying right now
90-day Loose median trend
0%
roughly flat

Current qualifying listings

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Caution: Seaman - No Mic, No Cardboard box - Sega Dreamcast - Authentic
Caution: Seaman - No Mic, No Cardboard box - Sega Dreamcast - Authentic
ebayVery Good

$70.00 USD

Shipping calculated

★ 98.7% · 328 ratings

Listed 2 days ago · checked 2 days ago

Seaman - Sega Dreamcast game - U.S Version - NO MIC
Seaman - Sega Dreamcast game - U.S Version - NO MIC
ebayAcceptable

$39.99 USD

Free shipping

★ 99.6% · 4,563 ratings

Listed 11 days ago · checked 11 days ago

Seaman (Sega Dreamcast, 2000) Complete - No Microphone - Tested & Working!
Seaman (Sega Dreamcast, 2000) Complete - No Microphone - Tested & Working!
ebayVery Good

$69.99 USD

Shipping calculated

★ 100% · 4,908 ratings

Listed 13 days ago · checked 13 days ago

Caution Seaman (Sega Dreamcast, 2000) with Box, Instructions & Microphone
Caution Seaman (Sega Dreamcast, 2000) with Box, Instructions & Microphone
ebayVery Good

$199.99 USD

Free shipping

★ 99.9% · 13,095 ratings

Listed 13 days ago · checked 13 days ago

SEGA Seaman Sega Dreamcast Simulation Game T-Teen NTSC-U/C US/Canada
SEGA Seaman Sega Dreamcast Simulation Game T-Teen NTSC-U/C US/Canada
ebayGood

$48.99 USD

Shipping calculated

★ 100% · 66 ratings

Listed 13 days ago · checked 13 days ago

SEGA Seaman for Sega Dreamcast CIB (No Microphone included
SEGA Seaman for Sega Dreamcast CIB (No Microphone included
ebayVery Good

$75.00 USD

Shipping calculated

★ 100% · 347 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Caution Seaman Dreamcast Complete CIB Tested ESRB USA Version No Mic
Caution Seaman Dreamcast Complete CIB Tested ESRB USA Version No Mic
ebayVery Good

$74.95 USD

Shipping calculated

★ 99.6% · 2,467 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Caution Seaman Sega Dreamcast CIB Complete + Manual Tested & Works No Microphone
Caution Seaman Sega Dreamcast CIB Complete + Manual Tested & Works No Microphone
ebayGood

$74.97 USD

Free shipping

★ 100% · 4,740 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Caution Seaman (Sega Dreamcast, 2000) - Big Box Game W/ Manual! READ! RARE!
Caution Seaman (Sega Dreamcast, 2000) - Big Box Game W/ Manual! READ! RARE!
ebayGood

$169.99 USD

Free shipping

★ 99.8% · 2,771 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Caution Seaman-Sega Dreamcast (1999, Vivarium) •Disc Only•
Caution Seaman-Sega Dreamcast (1999, Vivarium) •Disc Only•
ebayGood

$36.95 USD

Shipping calculated

★ 99.7% · 569 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

2000 CAUTION SEAMAN SEGA DREAMCAST GAME ONLY INCLUDES MANUAL - NO MIC
2000 CAUTION SEAMAN SEGA DREAMCAST GAME ONLY INCLUDES MANUAL - NO MIC
ebayAcceptable

$69.99 USD

+$1.99 shipping

★ 99.3% · 1,013 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Caution Seaman Dreamcast 2000 CIB w/Microphone + Inserts + Box
Caution Seaman Dreamcast 2000 CIB w/Microphone + Inserts + Box
ebayGood

$248.03 USD

★ 100% · 415 ratings

Seaman Dreamcast · 10/20/2026 7:16 AM

Roughly one qualifying listing every 6 days.

Asking-price ranges by condition

Condition Min 25% Median 75% Max N
Loose $36.95 $49.99 $69.99 $99.95 $250.00 23
Cib $69.99 $72.89 $75.00 $88.58 $248.03 12
SealedLow sample size $125.00 $125.00 $310.00 $329.00 $339.95 4

Asking prices of currently-active listings. Not sold-price data. Rows marked "low sample size" have fewer than 5 listings, so one outlier can move them a lot.

90-day Loose median trend
0%
vs 90 days ago

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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 104 listings we observed for this game in the last 30 days, we filtered out 99 of 104 (~95%) for quality reasons. The remaining 5 are what we'd actually surface.

  • 77 matched a bootleg / out-of-scope keyword
  • 12 shipped from a region we exclude
  • 6 caught by a junk-listing guard
  • 2 seller had too few feedback ratings
  • 1 priced above the curated ceiling
  • 1 seller positive-feedback percentage too low

What the feed excludes

An eBay search for Seaman (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 99 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 Seaman (Dreamcast) because they are: that's the noise.

Other titles & look-alikes 10
  • -christmas
  • -kindan
  • -forbidden pet
  • -vidpro
  • -visual memory
  • -seamail
  • -mic device
  • -microphone device
  • -hkt-
  • -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
  • -disc not included
Imports & regions 8
  • -japanese
  • -ntsc-j
  • -famicom
  • -jpn
  • -region locked
  • -jp
  • -pal
  • -japan
Lots & multi-item listings 7
  • -lot
  • -bundle
  • -set of
  • -multiple games
  • -3 games
  • -4 games
  • -5 games
Accessories, merch & paper 55
  • -controller
  • -headset
  • -headphones
  • -plush
  • -figure
  • -figurine
  • -keychain
  • -sticker
  • -charger
  • -cable
  • -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
  • -mic only
  • -microphone only
  • -manual only
  • -card only
  • -guide
  • -adapter only
  • -nfr
  • -hat
  • -pin
  • -ost
  • -adapter

How often qualifying deals appear

  • 1 in the last 7 days (~0.14/day)
  • 5 in the last 30 days (~0.17/day)
  • 5 in the last 90 days (~0.06/day)

Seaman: collector & reseller spec sheet

  • Release: Sega published the US Dreamcast version in 2000. The Japanese original and its later revisions are separate, region-locked discs. This feed tracks US copies only.
  • The microphone matters. The game was designed around the Dreamcast microphone, and complete copies shipped with one. Plenty of "CIB" listings say "no mic" in the title, so read for it: a copy with the mic and a copy without can sit at very different asking prices. If you only want the game itself, a no-mic copy is fine.
  • Disc, case, manual. Many listings are disc-only or disc-and-case. Check the photos show the disc itself and that the seller states it was tested.
  • Print variants: no title-specific variant is documented here, so confirm the product code on the label matches the US release.
  • Listing trap: Seaman-branded extras share the name: standalone microphones, promotional cards and clear Seaman-branded memory units. None of them is the game, so confirm the listing is for the disc before you buy.

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 Seaman (Dreamcast) worth right now?
CresvaMent's daily eBay index puts the median asking price for Seaman (Dreamcast) in Loose condition at $70 across 23 active US listings (November 6, 2026 snapshot). Asking prices, not sold prices.
How do I get notified when a new Seaman (Dreamcast) listing comes in under my price?
Live eBay listings for Seaman (Dreamcast) are at cresvament.com/deals/dreamcast/seaman, and CresvaMent can alert you by Discord or email when a new one is listed under your max price (free for one tracker).
How often do qualifying deals appear?
In the trailing 30 days, 5 qualifying listings appeared — roughly 0.17 per day.
Is Seaman (Dreamcast) reproduced or commonly faked?
In the last 30 days we excluded 77 listings for matching reproduction / out-of-scope keywords. The article above covers what to look for when verifying authenticity.

More Sega Dreamcast deal pages

All Sega Dreamcast deal pages →

Data freshness: last snapshot 2026-11-06 00:00 UTC . Atom feed

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