Quantum Theory box art for Xbox 360
Quantum Theory screenshot 3 for Xbox 360
Quantum Theory title screen for Xbox 360
Quantum Theory box art for Xbox 360
Quantum Theory logo for Xbox 360
Xbox 360 system logo
Complete
$16.85
Loose $10.00
Manage Collection
Home
›
Xbox 360
›
Quantum Theory

Quantum Theory

↗ 12%
😐 4.7/10
(Xbox 360 - US, Action & Adventure)
🇺🇸
US
🇪🇺
PAL
Xbox 360 logo
Developed_By:
Tecmo
Published_By:
Tecmo
Released On:
30 Sep 2010
Also available on:
Playstation 3
It has been 300 years since humanity collapsed in the wake of a great war. Nearly all of civilization destroyed, only small groups continue to live on in the wasteland. However, in the wasteland, there are strange towers that have appeared. Seemingly sentient, nobody knows who built them or why, only that anyone who ventures near will know only death. From these towers comes a mysterious substance called diablosis, which corrupts those who touch it, turning them into murderous killing machines. One man, known only as Syd, has made it his mission to destroy these towers and stop the diablosis.
Quantum Theory is a cover-based third-person shooter similar to the popular Gears of War series. Syd can hide behind and fire from cover, as well as "roadie run" between cover to move closer to enemies. He can carry up to three different weapons at a time, as well as go face-to-face with a powerful melee attack. Syd will also team up with a woman named Filena, with whom he can perform special team attacks, and even throw her at enemies for an especially powerful attack. In addition to the single-player campaign, there are also online team and deathmatch multiplayer modes.
Quantum Theory was released on Xbox 360 on September 28, 2010, for players looking for a challenging action-adventure experience.
eBay Product ID:
211983925 (Japan)
EAN-13:
4960677080025 (Japan)
UPC-A:
4960677080032 (Japan)
Part #:
TCM-30005 (Japan)
YouTube
Reddit
Twitch
Wikipedia
DB
IGDB
RG
RAWG
M
Metacritic
󱑆
HowLong
GF
GameFAQs
Media Type:
DVD-ROM
Sound Capabilities:
Dolby Digital
Number of Offline Players:
1 Player
Number of Online Players:
2-8 Players
Video Modes Supported:
HDTV 720p, HDTV 1080i, HDTV 1080p
Multiplayer Game Modes:
Free-for-all / One-on-one (VS), Team
Xbox/Windows Live:
Online Multiplayer, Content Download, Voice Chat, Scoreboard/Leaderboard, Achievements
Xbox 360 Platform Trends
US Regional Pricing
Prices as of 30 Jul 2026
Typical $14.52–$16.85 (last 90 days)
2022202320242025202605101520253035Complete: $16.85Loose: $10.00
New
Complete
Loose
Box
Manual
Smoothed
Log · Auto
Medians
Market activity: active · about 99 sales a year
Activity is a 12-month sales count. Dashed segments rest on two sales a year or fewer.

Related Games

Uncommon
😐 4.7/10
Quantum Theory
$19.49 (Complete)
Sep 2010
Rare
😐 4.7/10
Quantum Theory
$13.23 (Complete)
Sep 2010
Rare
😐 4.7/10
Quantum Theory
$15.08 (Complete)
Sep 2010

More Xbox 360 Action & Adventure

Abundant
😊 7.6/10
Batman: Arkham Origins
$21.23 (Complete)
Oct 2013
Abundant
😍 8.9/10
Grand Theft Auto V
$11.20 (Complete)
Sep 2013
Abundant
🙂 7.4/10
Grand Theft Auto IV
$18.93 (Complete)
Apr 2008
Abundant
😍 8.5/10
Left 4 Dead
$29.74 (Complete)
Nov 2008
Abundant
Red Dead Redemption
$10.03 (Complete)
May 2010
Abundant
🙂 6.9/10
Deadpool
$36.27 (Complete)
Jun 2013
Very Common
😊 8.2/10
Fallout: New Vegas
$14.20 (Complete)
Oct 2010
Very Common
LEGO Lord Of The Rings
$23.01 (Complete)
Nov 2012
Very Common
🙂 7.0/10
The Simpsons Game
$62.39 (Complete)
Oct 2007
Very Common
LEGO Batman The Videogame
$9.91 (Complete)
Sep 2008

More from Tecmo

Abundant
😊 7.9/10
Hyrule Warriors: Age of Calamity
$35.00 (Complete)
Nov 2020
Abundant
NEW
Hyrule Warriors Age Of Imprisonment
$47.02 (Complete)
Nov 2025
Very Common
Pokemon Conquest
$114.27 (Complete)
Jun 2012
Very Common
Hyrule Warriors Definitive Edition
$48.95 (Complete)
May 2018
Very Common
😊 8.0/10
Fire Emblem Warriors
$26.83 (Complete)
Oct 2017
Very Common
😊 8.0/10
Fire Emblem Warriors: Three Hopes
$21.59 (Complete)
Jun 2022
Very Common
😊 7.8/10
Ninja Gaiden II
$14.99 (Complete)
Jun 2008
Very Common
😊 7.8/10
Ninja Gaiden
$96.43 (Complete)
Mar 1989
Very Common
😊 7.7/10
Fatal Frame
$125.00 (Complete)
Mar 2002
Very Common
Dead or Alive Xtreme 2
$49.00 (Complete)
Nov 2006
Search Games
Popular Consoles
1980s
ZX Spectrum
1982 • 4774 games
Commodore 64
1982 • 1694 games
1990s
Playstation
1994 • 2230 games
Super Nintendo
1990 • 1226 games
2000s
Xbox 360
2005 • 3116 games
Playstation 2
2000 • 3088 games
2010s
Nintendo Switch
2017 • 5182 games
Playstation 4
2013 • 5181 games
2020s
Playstation 5
2020 • 2764 games
Xbox Series X
2020 • 1302 games
Trending Now
FIFA Soccer
PSP
Wipeout Pure
PSP
Dead to Rights Reckoning
PSP
Hot Brain
PSP
Grand Prix
Atari 2600
By Year
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
About
About Us
Contact
Privacy Policy
Terms of Service
Imprint
Copyright / DMCA
Popular Games
Sonic CD
Jungle Strike
Gremlins
Connect With Us
© 2026 RetroGold. All rights reserved.
Home
Games
Deals
Trade
Trends
Game Detection
Contribute
Lexicon