Here’s an extensive list of mobile phone, handheld, and GPS-based games going on around the world, from IN-Duce:DE-duce blog:

MOBILE PHONE BASED

Raygun, by Glofun –NEW

Location: US - 2005
A cell phone loaded with RayGun software emits “spectral” energy that
lets you attract and track ghosts. Unfortunately, the energy also
annoys the ghosts, so you’d better “ionize” them before they get to you.
Here’s the twist: RayGun is a GPS game, and to play it you have to move
through the real world—that is, running around using your real feet.

Conqwest, by SS+K
Location: Several Cities in the USA - 2004
big game + treasure hunt + phone cam + semacode + giant animal +
totems. ConQwest is a high-stakes, team-based treasure hunt in the
urban jungle. Five teams race through the city searching for treasure
in the form of printed codes that can be captured by phonecam. Each
code has a dollar value, and the first team to find $5,000 worth of
treasure codes wins the game and earns a $5,000 scholarship for their
school.

Swordfish, by Blisterent

Location: Canada - 2004
An exciting new location based fishing game that uses the latest GPS
technology. Using your phone’s GPS capability and Blister’s unique
Swordfish finder, you can locate schools of fish that are close to you,
move to them and land the BIG ONE!

Final Fantasy VII: Before Crisis (mobile phone version), by Square Enix
Location: Tokyo, Japan - since 2004
[GameSpy]
The most interesting twist in Before Crisis is how it utilizes the
properties of a mobile phone. Materia is an integral part of the game
and players will need to use the F900’s camera and phone features to
make the most out of it. To activate the various types of material, you
must take a picture of an object of a similar color. However, each
phone can only have a finite amount of material; the only way to get
more is to interact with other users. (It’s almost as devilishly clever
as needing another player to catch all the Pokemon.) Players can also
call each other for help when they’re stuck or tag along in an
adventure, though not in an MMORPG sense as the creators want the game
to be more random.

Undercover, by YDreams

Location: Hong Kong / Portugal - since 2003
[SmartMobs]
YDreams and Hong Kong mobile telecom operator Sunday last week launched
Undercover, a massively multiplayer, persistent game for mobile phone
users in Hong Kong. In the game, the players’ real location is the main
tool in a quest for justice and survival. Undercover has been available
nationwide in Portugal since July 2003. Sunday Hong Kong customers are
the first players outside Portugal to join the game - trial versions
are planned for over 14 countries.

Mogi, by NewtGames
Location: Tokyo, Japan - since 2003
[IN-duce]
For a month now, I have been playing a java mobile phone game called
Mogi, Item hunt from French company Newt Games. It uses the GPS
functions of the KDDI AU phones and allows you to pick up virtual items
spread on the whole of Japan. Let the game know where you are and it
will tell you what items are around you; if you get closer than 400m to
an object, you can pick it up and try to complete your collections, you
can also trade with other players. The objects vary in frequency and
value and the aim is to get the maximum amount of points.

GunSlingers, Mikoishi Studios
Location: Singapore - 2003
Gunslingers is a multi-player network game where players move around,
track and engage enemies within their vicinity. All this, just using
just an ordinary handphone. You walk around Singapore, you locate the
nearest opponent around you and then you blow the crap out of each
other. The game uses network positioning technology to help you find
the nearest enemy. It is similar to GPS or Global Positioning System,
except that you do not need a special phone with GPS capabilities. We
use Cell-ID-Network-Positioning-Technology.

TreasureMachine, BattleMachine, Girlfriend, Take-It, CrowdMachine, CreatorMachine, by Unwiredfactory
Location: Germany, Denmark

BotFighters, by It’s Alive

Location: Sweden, Finland, Ireland, Russia - since 2000
BotFighters is the world’s first location based mobile game that takes
advantage of mobile positioning and let’s the users play against others
in their vicinity by using a standard GSM phone. It’s a fast-paced game
mixing action- and roleplay ingredients.

NOT MOBILE PHONE BASED (mobile phones may be used during game play)

Vienen Por Ellas (They come for them), by Telefonica
Location: Chile - 2004

[WMMNA]
Mixes the real world with the game world. Aliens are planing to conquer
the Earth. They will capture all the women to fill the planet with
“hybrid creatures.”
Users become part of an anti-alien organisation called Plan-EVA which
tries to save the human race by solving quiz, answering questions,
finding the clues, etc. Users play via SMS, voice messages, Web sites,
WAP, moblogs, MMS, ringtones, etc. For example, by calling the 321
(called “intercomunicador 321″), the player can listen to his present
mission, get clues to solve the riddles, etc. Forums were also created
for players to share and comment their experience.
So far, the game is a success, with more than 300,000 users (mainly between 12 and 30 years old) registered.

I Like Frank in Adelaide, by Blast Theory
Location: Adelaide, Australia - 2004
This project takes place online and on the streets using 3G phones.
Players in the real city can chat with players in the virtual city as
they search for the elusive Frank. Whether braving the 40-degree heat
of a South Australian summer or logging from around the world, the
players will build relationships, swap information and test the
possibilities of a new hybrid space.

CitiTag, by HP Labs, the Open University’s Knowledge Media Institute (KMi)
Location: Bristol, UK - 2004
CitiTag is a wireless location-based multiplayer game, designed to
enhance spontaneous social interaction and novel experiences in city
environments by integrating virtual presence with physical. In the
first version of CitiTag you roam the city with a GPS- and WiFi-enabled
iPaq PocketPC in search for players of the opposite team that you can
‘tag’. You can also get tagged yourself if one of them gets close to
you. Then you need to find a friend to free you. Urban space becomes a
playground and everyone is a suspect.

Uncle Roy All Around You, by Blast Theory
Location: London, UK - 2003
Uncle Roy All Around You is where the console game breaks out onto the
streets; a game that pitches Online Players around the world alongside
players on the real streets of the city.
Street Players use handheld computers to search for Uncle Roy, using
the map and incoming messages to move through the city. Online Players
cruise through a virtual map of the same area, searching for Street
Players to help them find a secret destination.

Using web cams, audio and text messages players must work together. They have 60 minutes and the clock is ticking…

Urban Challenge, by Verizon Wireless
Location: Several Cities in USA - since 2002
The object of Verizon Wireless Urban Challenge is to visit twelve
checkpoints in correct order and return to event headquarters. The
first team back wins.

The Go Game, by Wink Back, Inc.
Location: San Francisco, USA - since 2001
The Go Game is an all-out urban adventure game, a technology-fueled,
reality-based experience that encourages hard play and a keen eye for
the weird, the beautiful, or the faintly out-of-the-ordinary. The “rule
book” is reality, the “board” is San Francisco, and the “pieces” are
the players — you and your team.

MobileHunt, by HIPnTASTY
Location: USA and Canada - since 2001
So you’ve played other people’s games, but have they ever played yours?
It’s time for MobileHunt‚Äö√묢 … the ultimate scavenger hunt game engine!

Cutlass - Treasure Hunt, by DCA Productions, Steve Bull (CEO)
Location: Times Square, NYC, USA - since 2001
No cellphone tic-tac-toe, Cutlass requires players to use digital
phones, wireless PDAs, the net–even ordinary phones–and lots of real
time footwork to find a treasure hidden nearby.

HANDHELD BASED

Savannah, by NESTA Futurelab
Location: Bristol, UK, 2004
Savannah is a strategy-based adventure game where a virtual space is
mapped directly onto a real space. Children ‘play’ at being lions in a
savannah, navigating the augmented environments with a mobile handheld
device. By using aspects of game play, Savannah challenges children to
explore and survive in the augmented space. To do this they must
successfully adopt strategies used by lions.

CatchBob!, by Nicolas Nova and Fabien Girardin
Location: Switzerland - 2004

CatchBob! is an experimental platform in the form of a mobile game for
running psychological experiments. It is designed to elicit
collaborative behavior of people working together on a mobile activity.

NetAttack, by Fraunhofer FIT
Location: Germany, 2004
NetAttack “is a new type of indoor/outdoor Augmented Reality game that
makes the actual physical environment an inherent part of the game
itself.” In this game, two teams are fighting to destroy the central
database of a virtual big company. Both teams have indoor players, who
control the game from their laptop computers, and outdoor players,
equipped with GPS receivers, trackers, sensors and video cameras.

Can you see me now?, by Blast Theory
Location: Europe - since 2002
Can You See Me Now? is a game that happens simultaneously online and on
the streets. Players from anywhere in the world can play online in a
virtual city against members of Blast Theory. Tracked by satellites,
Blast Theory’s runners appear online next to your player on a map of
the city. On the streets, handheld computers showing the positions of
online players guide the runners in tracking you down.

NodeRunner, by Yury Gitman, Carlos J. Gomez de Llarena
Location: NYC, USA - since 2002
A competitive game, Node Runner fuses the streets with wireless
networks to convert the city into a playing board. Two teams racing
against time must log into as many nodes as they can and upload
photographic proof to the server, documenting their progress.

Navigate the Streets, by Level 28 Brands
Location: Several Cities in Canada - 2004
‘Navigate The Streets’ is an experiment in modern city exploration, in
which teams of two compete using wireless gadgets and public
transportation to race through nine different Canadian cities, solving
riddles to discover their next checkpoint. While use of technology
isn’t required, various WiFi hotspot vendors will be sponsoring the
race, providing free access to participants throughout.

Demor - Audiogame, by Utrecht School of the Arts students
Location: The Netherlands - 2004
Demor is a location based 3D audio shooter. This highly innovative game
was developed by a multi-disciplinary team of seven EMMA-students for
the Bartimeus Institute for the Blind. Demor does not only focus on the
entertainment aspect of computer gaming, but also attempts to
contribute to the emancipation of the blind and visually impaired
people in order to enhance their integration with the ‘sighted’ world.
It is a proof of concept developed on the basis of theoretical and
practical research.

Human Pacman, by Mixed Reality Lab of National University of Singapore
Location: Singapore - 2004
The game has several novel aspects: Firstly, the players immerse in
role-playing of the characters Pacmen and Ghosts by physically enacting
the roles. Players physically move around in a wide-area setting,
performing tasks to reach their goals. Secondly, Human Pacman also
explores novel tangible aspects of human physical movement, senses and
perception, both on the player’s environment and on the interaction
with the digital world. Thirdly, users enjoy unrestricted movement
outdoor and indoor while maintaining their social contacts with each
other. Players interact both face-to-face with other players when in
proximity (physically) or indirectly via the wireless local area
network (LAN).
Pirates!, by PLAY research studio, Interactive Institute
Location: HUC conference in Bristol, UK - August 2000
A collaboration between the Nokia Research Center and the PLAY Research
Studio.A PDA-based context-sensitive game were the players’ physical
location and social interaction in a gaming area influences the events
in the game.

playbe by Steffen P. Walz -2001

The first to combine WiFi networked PDAs, multi-player action &
face2face collaboration, actors, real built game objects (e.g.
bombs, puzzles, clues on answering machines), automated phone booth
calls, and “rescue headquarters” to a daylong game experience
beyond the desktop.

OTHERS

Digital Street Game, by Intel Corporation
Location: Manhattan, New York, USA - 2004
Crap name, Fun game. Digital Street Game is a hybrid game of
misadventure set on the streets of New York. It’s a battle for turf, a
contest of wills in short an excuse to explore the city. Players
compete for turf by performing and documenting stunts on the physical
streets of New York in order to claim territory on a virtual map.
Stunts are comprised of a random combination of 3 elements: 1) an
object commonly found in the city (e.g. bodega) 2) a street game (e.g.
stickball) and 3) a wildcard/urban situation (e.g. happy hour). Players
interpret these elements as they wish, then stage and photograph their
stunt in order to claim a spot on the map. The more stunts players
perform the more turf they claim. But of course some players may want
to compete for the same territory. In order to hold on to territory,
players stunts must score high with the rest of the game community.

Pac-Manhattan by Dennis Crowley, Frank Lantz (instructor) and others

Location: Manhattan, New York, USA - 2004
PacManhattan is a live-action version of PacMan, played around
Washington Square Park, in which people in Pac Man and ghost suits
chase each other through the streets, seeking out power-pellets.

Operation Urban Terrain, by Opensorcery.net
Location: NYC, USA - 2004
Two women in gear are on the ground. One with a laptop and the other
with a projector pointing onto building walls in key locations in the
city. They are connected through a mobile wireless bicycle to an online
team of five game players located around the world. They intervene on
servers in a popular online military simulation game with performance
actions carried out by the whole team.The live projections in the city
can also be viewed through web cams on the OUT website.

Geocaching/GPS Stash Hunt, by Groundspeak
Location: anywhere!!

A GPS device and a hunger for adventure are all you need for high tech
treasure hunting. Here you can find the latest caches in this fun and
exciting sport.