Altered Beast

Sega Mega Drive / Genesis Sega

Complete: $25
Sales: 20+in 90 days

Variants

Region

Any NTSC PAL JP

Complete $18–$3020+ sales Sealed —no sales Loose $8–$1520+ sales Incomplete $8–$1810+ sales Graded CIB —no sales Graded —no sales

Market value

$8–$15 typical$11.9620+ sales in 90 days

$8 $15

Liquidity 71 of 100

around 20 sold in 90 days · sells in about 2 weeks · around 50 listed now

No trend yet

sales since Oct 2026

Medium confidence

20+ sales, newest Oct 29 · wide spread

Sales history

22 recorded loose sales of Altered Beast, every region, newest first
Sold		Region	Edition	Condition	Price
Oct 19, 2026 sold in 4 weeks	Sega Genesis Altered Beast - Cartridge Only Oct 19, 2026NTSC · Standard	NTSC	Standard	Loose	$10.99 eBay
Oct 19, 2026 sold in 3 days	Jeu Sega Mega Drive - Altered Beast (cartouche seule) Oct 19, 2026PAL · Standard	PAL	Standard	Loose	$4.48 Vinted
Oct 18, 2026 sold in 5 days	Sega Mega Drive Altered Beast Spielemodul Oct 18, 2026PAL · Standard	PAL	Standard	Loose	$7.31 eBay · Auction
Oct 17, 2026 sold in 4 weeks	ALTERED BEAST Ju Oh Ki Juohki Sega Mega Drive Cart Only US Seller Works Oct 17, 2026Japan · Standard	Japan	Standard	Loose	$24.99 eBay
Oct 17, 2026 sold in 2 months	Altered Beast Sega Genesis GAME CARTRIDGE ONLY Authentic TESTED USA Oct 17, 2026NTSC · Standard	NTSC	Standard	Loose	$19.95 eBay
Oct 15, 2026 sold in 2 months	Altered Beast Mega Drive - Cart Only - PAL - Megadrive - Tested & Working Great Oct 15, 2026PAL · Standard	PAL	Standard	Loose	$7.25 eBay
Oct 13, 2026 sold in 7 days	Altered Beast (Sega Genesis, 1989) Oct 13, 2026NTSC · Standard	NTSC	Standard	Loose	$7 eBay · Auction
Oct 11, 2026 sold after a year	Altered Beast Sega Mega Drive MD PAL Oct 11, 2026PAL · Standard	PAL	Standard	Loose	$18.71 eBay
Oct 11, 2026 sold in 2 days	Altered Beast (Sega Genesis) Game Cartridge, 1989 Tested (Label Damage) Oct 11, 2026NTSC · Standard	NTSC	Standard	Loose	$12.99 eBay
Oct 11, 2026 sold in 9 months	Altered Beast (Sega Genesis, 1989) Cartridge Only Tested Oct 11, 2026NTSC · Standard	NTSC	Standard	Loose	$11.89 eBay

Photos

NTSC

Front

PAL

Front

Japan

Front

Frequently asked

How much is Altered Beast worth on the Sega Mega Drive / Genesis?

A complete copy sells for about $25. Most go for $18 to $30. A loose cartridge sells for $8 to $15 and an incomplete copy for $8 to $18.

Is the price of Altered Beast going up or down?

Up so far, from about $7 for a loose cartridge in the week of October 12 to $12 in the week of October 19.

Does the price of Altered Beast vary by region?

Yes. A PAL copy sells for about $10 and an NTSC copy for about $12. One Japan copy has sold, for $24.99. Prices are for loose cartridges.

Any region $8–$1520+ sales
NTSC copy $11–$135+ sales
PAL copy $6–$1710+ sales
Japan copy $251 sale

What does Altered Beast sell for in the United Kingdom?

A loose cartridge sells for £8.87 in the United Kingdom.

United States $12.4910+ sales
United Kingdom £8.875+ sales

Does Altered Beast have a collector's edition on the Sega Mega Drive / Genesis?

Not that we've seen. All 50+ sales so far were standard copies.

How quickly does Altered Beast sell?

Around 2 copies sell per week. The cheapest listings take about 2 weeks to sell, and around 50 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?

Published by Sega and developed by Sega.