Altered Beast

Sega Mega Drive / Genesis Sega

Complete: $25
Sales: 20+in 90 days

Variants

Region

Any NTSC PAL JP

Complete $17–$3020+ sales Sealed —no sales Loose $8–$1610+ sales Incomplete $8–$1910+ sales Graded CIB —no sales Graded —no sales

Market value

$17–$30 typical$24.6620+ sales in 90 days

$17 $30

Liquidity 92 of 100

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

No trend yet

sales since Oct 2026

High confidence

20+ sales, newest Oct 29 · wide spread

Sales history

42 recorded complete sales of Altered Beast, every region, newest first
Sold		Region	Edition	Condition	Price
Oct 20, 2026 sold in under 1 day	Altered Beast Sega Genesis Complete in Box CIB Oct 20, 2026NTSC · Standard	NTSC	Standard	Complete	$35 eBay
Oct 19, 2026 sold in under 1 day	ALTERED BEAST (SEGA GENESIS) COMPLETE WITH MANUAL - TESTED Oct 19, 2026NTSC · Standard	NTSC	Standard	Complete	$24 eBay
Oct 19, 2026 sold in 2 days	Altered Beast - SEGA Mega Drive with manual Oct 19, 2026PAL · Standard	PAL	Standard	Complete	~~$18.66~~ $18.67 eBay
Oct 18, 2026 sold in 2 weeks	Altered Beast (Sega Genesis) CIB COMPLETE IN BOX TESTED AND WORKING! Oct 18, 2026NTSC · Standard	NTSC	Standard	Complete	$24.99 eBay
Oct 18, 2026 sold in 4 weeks	Altered Beast (Sega Genesis, 1989) CIB Complete w/Manual Tested Oct 18, 2026NTSC · Standard	NTSC	Standard	Complete	$50 eBay
Oct 17, 2026 sold in 11 days	1989 Sega Genesis Altered Beast Game Complete With Manual In Case Oct 17, 2026NTSC · Standard	NTSC	Standard	Complete	$32 eBay
Oct 17, 2026 sold in 13 days	Sega Genesis Altered Beast 1989 Vintage Game Case Manual for 16-Bit Cartridge Oct 17, 2026NTSC · Standard	NTSC	Standard	Complete	$22.50 eBay
Oct 16, 2026 sold in 2 days	Mega drive game, Altered Beast! Oct 16, 2026PAL · Standard	PAL	Standard	Complete	$13.25 Vinted
Oct 15, 2026 sold in under 1 day	Jeu complet sega Megadrive altered beast Oct 15, 2026PAL · Standard	PAL	Standard	Complete	$30.26 Vinted
Oct 15, 2026 sold in 4 weeks	Altered Beast SEGA Mega Drive 1990 CIB Manual PAL Vintage Retro Gaming Complete Oct 15, 2026PAL · Standard	PAL	Standard	Complete	~~$30.45~~ $30.50 eBay
Oct 14, 2026 sold in under 1 day	Altered Beast - SEGA Mega Drive - SEGA - CIB - Tested Working Oct 14, 2026PAL · Standard	PAL	Standard	Complete	~~$13.51~~ $13.48 eBay
Oct 13, 2026 sold in 3 days	Altered Beast SEGA Mega Drive 1990 Complete with Manual PAL Tested Oct 13, 2026PAL · Standard	PAL	Standard	Complete	~~$24.63~~ $24.60 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 $17 to $30. A loose cartridge sells for $8 to $16 and an incomplete copy for $8 to $19.

Is the price of Altered Beast going up or down?

Down so far, from about $25 for a complete copy in the week of October 12 to $21 in the week of October 26.

Does the price of Altered Beast vary by region?

Yes. A PAL copy sells for about $21 and an NTSC copy for about $26.

Any region $17–$3020+ sales
NTSC copy $20–$3320+ sales
PAL copy $14–$2810+ sales
Japan copy no sales yet

What does Altered Beast sell for in the United Kingdom and France?

A complete copy sells for £14.90 in the United Kingdom and 22 € in France.

United States $25.8620+ sales
United Kingdom £14.9010+ sales
France 22 €5+ 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?

It sells fast, around 3 copies per week. The cheapest listings sell within about 2 days, 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.