Altered Beast

Sega Master System Released January 1, 1989 Sega

Region: NTSC
Complete: $19
Sales in 90 days: 3in 90 days

Region: PAL
Complete: $14
Sales in 90 days: 2in 90 days

Variants

Region

Any NTSC PAL BR

Edition

Standard $14–$225+ sales Re-releaseReissue Re-release 2Reissue

Loose $151 sale Incomplete $14–$172 sales Complete $14–$225+ sales Sealed —no sales Graded CIB —no sales Graded —no sales

Market value

$14–$22 typical$16.375+ sales in 90 days

$14 $22

Liquidity 51 of 100

5 sold in 90 days · sells in about 10 days · around 20 listed now

No trend yet

sales since Oct 2026

Medium confidence

5+ sales, newest Oct 22 · few sales

Sales history

5 recorded complete sales of Altered Beast, every region, newest first
Sold		Region	Edition	Condition	Price
Oct 22, 2026 sold in under 1 day	Altered Beast Sega Master System MINTY with POSTER CIB Oct 22, 2026NTSC · Standard	NTSC	Standard	Complete	$25.13 eBay
Oct 13, 2026 sold in 4 weeks	Altered Beast (Sega Master System) CIB NTSC Oct 13, 2026NTSC · Standard	NTSC	Standard	Complete	$18.95 eBay
Oct 12, 2026 sold in 5 weeks	Altered Beast Sega Master System Game Complete CIB Case Manual 7018 Tonka Oct 12, 2026NTSC · Standard	NTSC	Standard	Complete	~~$18.90~~ $16 eBay · Offer accepted
Oct 12, 2026 sold in 1 day	Sega Master System Altered Beast Game Complete with Manual Oct 12, 2026PAL · Standard	PAL	Standard	Complete	~~$12.57~~ $12.56 eBay
Oct 11, 2026 sold in 10 days	Sega Master System – Altered Beast (PAL, komplett) Oct 11, 2026PAL · Standard	PAL	Standard	Complete	$15.63 eBay · Auction

Photos

NTSC

Front
Back

PAL

Front

Frequently asked

How much is Altered Beast worth on the Sega Master System?

A complete copy sells for about $19 in NTSC (US, Canada). Two complete copies have sold in PAL (EU, UK, Australia), for $12.56 and $15.63.

Which editions of Altered Beast exist on the Sega Master System?

The Standard, the Re-release and the Re-release 2. The price at the top of the page is for standard copies.

Standard $14–$225+ sales
Re-release no sales yet
Re-release 2 no sales yet

How quickly does Altered Beast sell?

Around 2 copies sell per month. The cheapest listings sell within about 10 days, and around 20 are listed right now.

How is sales data gathered?

We retrieve listing information through eBay alerts and Vinted alerts provided by GrailHound and apply image recognition and text processing to link marketplace listings to games.

Who made Altered Beast and when did it come out?

Published by Sega and developed by Sega. Released 1989 in NTSC and PAL.