SlideShare a Scribd company logo
1 of 84
Download to read offline
There Be Dragons
ten potential pitfalls
of gamification
Sebastian Deterding (@dingstweets)
Digital Shoreditch, London, May 4, 2011

cbn
(Grumpy monster talk)
With unexplored territories ...
… comes dangerous ground.
7
                      3       10
         8


     9
              4
                                    6




     2



                  5

 1




A (partial) map of troubles ahead
1




The Crap Crab
Abuse is not a value proposition
8 Million
Foursquare Accounts!
  But daily checkins/user dropped from 0,5 to 0,4 to 0,34 while growing from 2
to 5 to 8 million accounts (foursquare’s own data, 2011).
Who knew?
Foursquare has an
engagement problem.
http://www.creative360.com/blog/2009/09/why-i-quit-playing-foursquare/
»What we have learned from our users is that any
game aspect has to be, at least for finance, more
oriented toward some specific thing that you are
working toward: I want to buy a house or a car, take a
vacation, get out of debt ... Otherwise you have a
system of points with no levels or no end game.«




        Aaron Patzer
        founder, mint.com (2010)
We give you points




                       User                        Business
                       value                        value


                                                                 You check in




The gamification battlefield*
* Courtesy Buster Benson, “The Game always Wins”
»The marketing dictum that “good marketing
cannot compensate for a bad product” is
patently turned upside down in the Funware
world. Game mechanics and the
psychological conditions they exploit are
powerful tools that marketers can use, and
they’re a lot cheaper … than cash in the long
run.«



       Gabe Zichermann
       game-based marketing (2009)
Points and badges for
                        loyalty – you are so
                               cheap!




 That one coupon and
       I’m gone!




An abusive relationship
Stack Overflow
You get answers & build reputation,
                 we grow our platform




         User               Business
         value               value




The gamification honeymoon
Playing field




                     
          User                    Business
          value                    value




                                             Off



Stay in the playing field
What do users value?*
• Getting things done, easier
• Self-improvement
• Community recognition and belonging
• A sense of meaning and meaning
• Instrumental value, cash
• Fun and enjoyment
• Competence and achievement
                     * A completely off-the cuff, non-comprehensive, non-scientific etc. pp. list
Getting things done, easier
Self-improvement
Community recognition & belonging
»Would my non-geek friend
brag about this during dinner
with colleagues?«


(The community status litmus test)
Sense of meaning and contribution
»Imagine a world in which
every single human being can
freely share in the sum of all
knowledge. That's our
commitment.«


    Wikimedia Foundation
    slogan
Cash, instrumental value
Fun and entertainment
The Feedback Blowfish
Rewards are not achievements



  2
Score: 964,000,000,000,000
                                (You rock!)




Earn 1,000,000,000,000 points
»Fun is just another word
      for learning.«



   Raph Koster
   a theory of fun for game design (2005)
»Fun from games arises out of mastery.
It arises out of comprehension. It is the
act of solving puzzles that makes games
fun. With games, learning is the drug.«




      Raph Koster
      a theory of fun for game design (2005)
Clear goals ...
plus constraining rules ...
equals interesting challenges.
Plus constant, clear feedback ...
                               http://www.flickr.com/photos/bodgerbrooks/1315419080
equals experiences of achievement.
Feedback without achievement
The Maelstorm of Misplaced Challenge
Getting in the way of efficiency



                                   3
Ticket




         To receive ticket, steer
         point through maze
Ticket




         Level 2
                   To receive ticket, steer
                   point through maze
The core challenge of e-mail?
• Maximum output?
• Error-free, polite, actionable?
• Prioritization?
• Quick answers?
• Checking less often?
• Inbox Zero?
Prioritization
Procrastination
The Trapped Sea of Staleness
No fresh content and challenge




                                 4
2010: 85
Max. level




                                      2008: 80



                        2007: 70


             2004: 60
                               Year




World of Warcraft Expansions
FrontierVille Seasonal Content
… vs. Quality and Variety
The Urobus of Unintended Consequence
Neglecting side effects



  5
Tumblarity
… vs. Quality and Variety
Mayor Maker
The Social Signal Sea Serpent
Ignoring Context Meanings



                                6
Autonomy Leech and Value Vampire
The hidden costs of extrinsic rewards




                                        7
… vs. Quality andthrough control
Curbing autonomy Variety
Devaluing the activity
                         http://www.flickr.com/photos/courosa/4955407599/sizes/l/in/photostream/
http://www.flickr.com/photos/courosa/4955407599/sizes/l/in/photostream/
The Ice Shelves of Ignorance
Not knowing your users



  8
FarmVille
Fallout 3
Fanlib.com, a cautionary tale
9




The Feature Shallows
Neglecting design process
Prototype & playtestVariety “why”
 … vs. Quality and for “how”,
Analytics for “where”, “how much”
The Panacea Python
Looking for a quick-fix, one-size-fits-all
wonder potion



  10
»At SCVNGR we like to joke
that with any seven game
dynamics you can get anyone
to do anything.«


    Seth Priebatsch
    welcome to the decade of games (2010)
When do people do stuff?*
                                                      ability
                                                      (Skills, habits)                 Usability


      motivation                                                                            behaviour
         (intrinsic, extrinsic)



   Game design
(and other things)
                                               opportunity                              Prompts,
                                                 (Situation, environment)
                                                                                        context
* A comprehensive, well-researched, widely adopted etc. pp. model (namely the Motivation, Opportunity, Ability Model)
Four questions to leave with
• Is motivation the issue?
• Is there a core value that game
  elements can amplify?
• Can this be gamed (does it involve a
  learnable challenge and autonomy)?
• Is gaming the most cost-benefit efficient
  way of improving motivation here?
Thank You.
 @dingstweets

 sebastian@codingconduct.cc

 codingconduct.cc

More Related Content

What's hot

Smart Gamification
Smart GamificationSmart Gamification
Smart Gamification
Amy Jo Kim
 
Metagame Design
Metagame DesignMetagame Design
Metagame Design
Amy Jo Kim
 
Smart Gamification: Social Game Design for a Connected World
Smart Gamification: Social Game Design for a Connected WorldSmart Gamification: Social Game Design for a Connected World
Smart Gamification: Social Game Design for a Connected World
Amy Jo Kim
 
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
Amy Jo Kim
 
Don't Play Games With Me! Promises and Pitfalls of Gameful Design
Don't Play Games With Me! Promises and Pitfalls of Gameful DesignDon't Play Games With Me! Promises and Pitfalls of Gameful Design
Don't Play Games With Me! Promises and Pitfalls of Gameful Design
Sebastian Deterding
 

What's hot (20)

Meaningful Play. Getting »Gamification« Right.
Meaningful Play. Getting »Gamification« Right.Meaningful Play. Getting »Gamification« Right.
Meaningful Play. Getting »Gamification« Right.
 
Gamification 101: Design the Player Journey
Gamification 101: Design the Player JourneyGamification 101: Design the Player Journey
Gamification 101: Design the Player Journey
 
Paideia as Paidia: From Game-Based Learning to a Life Well-Played
Paideia as Paidia: From Game-Based Learning to a Life Well-PlayedPaideia as Paidia: From Game-Based Learning to a Life Well-Played
Paideia as Paidia: From Game-Based Learning to a Life Well-Played
 
Simon Egenfeldt Nielsen, Serious Games Interactive, NOW is Digital
Simon Egenfeldt Nielsen, Serious Games Interactive, NOW is DigitalSimon Egenfeldt Nielsen, Serious Games Interactive, NOW is Digital
Simon Egenfeldt Nielsen, Serious Games Interactive, NOW is Digital
 
Gamification: Future or Fail?
Gamification: Future or Fail?Gamification: Future or Fail?
Gamification: Future or Fail?
 
Smart Gamification
Smart GamificationSmart Gamification
Smart Gamification
 
Metagame Design
Metagame DesignMetagame Design
Metagame Design
 
Work better, Play Together. On Enterprise Gamification
Work better, Play Together.  On Enterprise GamificationWork better, Play Together.  On Enterprise Gamification
Work better, Play Together. On Enterprise Gamification
 
Smart Gamification: Social Game Design for a Connected World
Smart Gamification: Social Game Design for a Connected WorldSmart Gamification: Social Game Design for a Connected World
Smart Gamification: Social Game Design for a Connected World
 
Outside the Box: Toward an Ecology of Gaming Enjoyment
Outside the Box: Toward an Ecology of Gaming EnjoymentOutside the Box: Toward an Ecology of Gaming Enjoyment
Outside the Box: Toward an Ecology of Gaming Enjoyment
 
Rules of Engagement: How Gamification is Changing the World
Rules of Engagement: How Gamification is Changing the World Rules of Engagement: How Gamification is Changing the World
Rules of Engagement: How Gamification is Changing the World
 
Magic Pixie Wonder Dust 3000 (Enterprise Edition): Designing Motivational Exp...
Magic Pixie Wonder Dust 3000 (Enterprise Edition): Designing Motivational Exp...Magic Pixie Wonder Dust 3000 (Enterprise Edition): Designing Motivational Exp...
Magic Pixie Wonder Dust 3000 (Enterprise Edition): Designing Motivational Exp...
 
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
The Player's Journey: drive sustained engagement with Onboarding, Habit-Build...
 
Gamification: Solving the Engagement Problem in Communication?
Gamification: Solving the Engagement Problem in Communication?Gamification: Solving the Engagement Problem in Communication?
Gamification: Solving the Engagement Problem in Communication?
 
Gamification: Future Tools
Gamification: Future ToolsGamification: Future Tools
Gamification: Future Tools
 
Gameful Design: Creating Engaging Experiences
Gameful Design: Creating Engaging ExperiencesGameful Design: Creating Engaging Experiences
Gameful Design: Creating Engaging Experiences
 
Toward Economic Platform Studies
Toward Economic Platform StudiesToward Economic Platform Studies
Toward Economic Platform Studies
 
Don't Play Games With Me! Promises and Pitfalls of Gameful Design
Don't Play Games With Me! Promises and Pitfalls of Gameful DesignDon't Play Games With Me! Promises and Pitfalls of Gameful Design
Don't Play Games With Me! Promises and Pitfalls of Gameful Design
 
Getting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo Kim
Getting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo KimGetting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo Kim
Getting2Alpha: Turbo-charge your product with Game Thinking by Amy Jo Kim
 
From Game Design Elements to Gamefulness: Defining "Gamification"
From Game Design Elements to Gamefulness: Defining "Gamification"From Game Design Elements to Gamefulness: Defining "Gamification"
From Game Design Elements to Gamefulness: Defining "Gamification"
 

Similar to There Be Dragons: Ten Potential Pitfalls of Gamification

UXAustralia 2011: Gamification sucks
UXAustralia 2011: Gamification sucksUXAustralia 2011: Gamification sucks
UXAustralia 2011: Gamification sucks
Paris Buttfield-Addison
 
Work better, play together? Rypple on Enterprise Gamification
Work better, play together? Rypple on Enterprise GamificationWork better, play together? Rypple on Enterprise Gamification
Work better, play together? Rypple on Enterprise Gamification
George Babu
 
Motivating Students With Math Games
Motivating Students With Math GamesMotivating Students With Math Games
Motivating Students With Math Games
Doug Adams
 

Similar to There Be Dragons: Ten Potential Pitfalls of Gamification (20)

9.5 Theses on the Power and Efficacy of Gamification
9.5 Theses on the Power and Efficacy of Gamification9.5 Theses on the Power and Efficacy of Gamification
9.5 Theses on the Power and Efficacy of Gamification
 
Financial Planning is Not a Game...
Financial Planning is Not a Game...Financial Planning is Not a Game...
Financial Planning is Not a Game...
 
Introduction to Gamification
Introduction to GamificationIntroduction to Gamification
Introduction to Gamification
 
Agile Games 2012 Keynote - Games Landscape and Importance of Play
Agile Games 2012 Keynote - Games Landscape and Importance of PlayAgile Games 2012 Keynote - Games Landscape and Importance of Play
Agile Games 2012 Keynote - Games Landscape and Importance of Play
 
Presentation by Manny Acevedo
Presentation by Manny AcevedoPresentation by Manny Acevedo
Presentation by Manny Acevedo
 
UXAustralia 2011: Gamification sucks
UXAustralia 2011: Gamification sucksUXAustralia 2011: Gamification sucks
UXAustralia 2011: Gamification sucks
 
Face of Finance - Gamification
Face of Finance - GamificationFace of Finance - Gamification
Face of Finance - Gamification
 
Gamifying excellence in Delivery
Gamifying excellence in Delivery Gamifying excellence in Delivery
Gamifying excellence in Delivery
 
2011’s HOT BUTTON TOPIC: ENGAGEMENT THROUGH GAMIFICATION.
2011’s HOT BUTTON TOPIC: ENGAGEMENT THROUGH GAMIFICATION.2011’s HOT BUTTON TOPIC: ENGAGEMENT THROUGH GAMIFICATION.
2011’s HOT BUTTON TOPIC: ENGAGEMENT THROUGH GAMIFICATION.
 
Work better, play together? Rypple on Enterprise Gamification
Work better, play together? Rypple on Enterprise GamificationWork better, play together? Rypple on Enterprise Gamification
Work better, play together? Rypple on Enterprise Gamification
 
HOW TO CREATE A GAME DESIGN?
HOW TO CREATE A GAME DESIGN?HOW TO CREATE A GAME DESIGN?
HOW TO CREATE A GAME DESIGN?
 
Gamification: Why it’s important
Gamification: Why it’s importantGamification: Why it’s important
Gamification: Why it’s important
 
Hvbf 2013 #3
Hvbf 2013 #3Hvbf 2013 #3
Hvbf 2013 #3
 
Pixel-Lab / Games:EDU / Matt Southern / Graduating Games
Pixel-Lab / Games:EDU / Matt Southern / Graduating GamesPixel-Lab / Games:EDU / Matt Southern / Graduating Games
Pixel-Lab / Games:EDU / Matt Southern / Graduating Games
 
Points don't make it a game!
Points don't make it a game!Points don't make it a game!
Points don't make it a game!
 
Games Are The New Normal (deck from GfK Tech Scouting conference)
Games Are The New Normal (deck from GfK Tech Scouting conference)Games Are The New Normal (deck from GfK Tech Scouting conference)
Games Are The New Normal (deck from GfK Tech Scouting conference)
 
Motivating Students With Math Games
Motivating Students With Math GamesMotivating Students With Math Games
Motivating Students With Math Games
 
Gamification Strategies How to solve problems, motivate and engage people th...
 Gamification Strategies How to solve problems, motivate and engage people th... Gamification Strategies How to solve problems, motivate and engage people th...
Gamification Strategies How to solve problems, motivate and engage people th...
 
Creating the Design Document
Creating the Design DocumentCreating the Design Document
Creating the Design Document
 
Carla hoekendijk
Carla hoekendijkCarla hoekendijk
Carla hoekendijk
 

More from Sebastian Deterding

More from Sebastian Deterding (20)

Mechanics, Messages, Meta-Media: How Persuasive Games Persuade, and What They...
Mechanics, Messages, Meta-Media: How Persuasive Games Persuade, and What They...Mechanics, Messages, Meta-Media: How Persuasive Games Persuade, and What They...
Mechanics, Messages, Meta-Media: How Persuasive Games Persuade, and What They...
 
Gamification for Health Behaviour Change
Gamification for Health Behaviour ChangeGamification for Health Behaviour Change
Gamification for Health Behaviour Change
 
City Games: Up and Down and Sideways on the Ladder of Abstraction
City Games: Up and Down and Sideways on the Ladder of AbstractionCity Games: Up and Down and Sideways on the Ladder of Abstraction
City Games: Up and Down and Sideways on the Ladder of Abstraction
 
Desperately Seeking Theory
Desperately Seeking TheoryDesperately Seeking Theory
Desperately Seeking Theory
 
Gamification: Missverständnisse und Lösungen
Gamification: Missverständnisse und LösungenGamification: Missverständnisse und Lösungen
Gamification: Missverständnisse und Lösungen
 
Experience Design in the Museum
Experience Design in the MuseumExperience Design in the Museum
Experience Design in the Museum
 
It's the Autonomy, Stupid: Autonomy Experiences Between Playful Work and Work...
It's the Autonomy, Stupid: Autonomy Experiences Between Playful Work and Work...It's the Autonomy, Stupid: Autonomy Experiences Between Playful Work and Work...
It's the Autonomy, Stupid: Autonomy Experiences Between Playful Work and Work...
 
Gameful Design for Learning
Gameful Design for LearningGameful Design for Learning
Gameful Design for Learning
 
Un-Boring Meetings
Un-Boring MeetingsUn-Boring Meetings
Un-Boring Meetings
 
Explodierende Medien
Explodierende MedienExplodierende Medien
Explodierende Medien
 
Would the real Mary Poppins please stand up? Approaches and Methods in Gamefu...
Would the real Mary Poppins please stand up? Approaches and Methods in Gamefu...Would the real Mary Poppins please stand up? Approaches and Methods in Gamefu...
Would the real Mary Poppins please stand up? Approaches and Methods in Gamefu...
 
Design Against Productivity
Design Against ProductivityDesign Against Productivity
Design Against Productivity
 
I wonder ... Designing for Curiosity
I wonder ... Designing for CuriosityI wonder ... Designing for Curiosity
I wonder ... Designing for Curiosity
 
Player Rating Algorithms for Balancing Human Computation Games: Testing the E...
Player Rating Algorithms for Balancing Human Computation Games: Testing the E...Player Rating Algorithms for Balancing Human Computation Games: Testing the E...
Player Rating Algorithms for Balancing Human Computation Games: Testing the E...
 
The Mechanic is not the (whole) message: Procedural rhetoric meets framing in...
The Mechanic is not the (whole) message: Procedural rhetoric meets framing in...The Mechanic is not the (whole) message: Procedural rhetoric meets framing in...
The Mechanic is not the (whole) message: Procedural rhetoric meets framing in...
 
The Great Escape from the Prison House of Language: Games, Production Studies...
The Great Escape from the Prison House of Language: Games, Production Studies...The Great Escape from the Prison House of Language: Games, Production Studies...
The Great Escape from the Prison House of Language: Games, Production Studies...
 
Progress Wars: Idle Games and the Demarcation of "Real Games"
Progress Wars: Idle Games and the Demarcation of "Real Games"Progress Wars: Idle Games and the Demarcation of "Real Games"
Progress Wars: Idle Games and the Demarcation of "Real Games"
 
Desperately Seeking Theory: Gamification, Theory, and the Promise of a Data/A...
Desperately Seeking Theory: Gamification, Theory, and the Promise of a Data/A...Desperately Seeking Theory: Gamification, Theory, and the Promise of a Data/A...
Desperately Seeking Theory: Gamification, Theory, and the Promise of a Data/A...
 
What Larp can Learn from RPG Studies
What Larp can Learn from RPG StudiesWhat Larp can Learn from RPG Studies
What Larp can Learn from RPG Studies
 
Contextual Autonomy Support in Video Game Play: A Grounded Theory
Contextual Autonomy Support in Video Game Play: A Grounded TheoryContextual Autonomy Support in Video Game Play: A Grounded Theory
Contextual Autonomy Support in Video Game Play: A Grounded Theory
 

Recently uploaded

Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
rajveermohali2022
 
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
amitlee9823
 

Recently uploaded (20)

𓀤Call On 6297143586 𓀤 Park Street Call Girls In All Kolkata 24/7 Provide Call...
𓀤Call On 6297143586 𓀤 Park Street Call Girls In All Kolkata 24/7 Provide Call...𓀤Call On 6297143586 𓀤 Park Street Call Girls In All Kolkata 24/7 Provide Call...
𓀤Call On 6297143586 𓀤 Park Street Call Girls In All Kolkata 24/7 Provide Call...
 
❤Personal Whatsapp Number Mukteshwar Call Girls 8617697112 💦✅.
❤Personal Whatsapp Number Mukteshwar Call Girls 8617697112 💦✅.❤Personal Whatsapp Number Mukteshwar Call Girls 8617697112 💦✅.
❤Personal Whatsapp Number Mukteshwar Call Girls 8617697112 💦✅.
 
Verified Trusted Call Girls Singaperumal Koil Chennai ✔✔7427069034 Independe...
Verified Trusted Call Girls Singaperumal Koil Chennai ✔✔7427069034  Independe...Verified Trusted Call Girls Singaperumal Koil Chennai ✔✔7427069034  Independe...
Verified Trusted Call Girls Singaperumal Koil Chennai ✔✔7427069034 Independe...
 
Model Call Girls In Velappanchavadi WhatsApp Booking 7427069034 call girl ser...
Model Call Girls In Velappanchavadi WhatsApp Booking 7427069034 call girl ser...Model Call Girls In Velappanchavadi WhatsApp Booking 7427069034 call girl ser...
Model Call Girls In Velappanchavadi WhatsApp Booking 7427069034 call girl ser...
 
Book Sex Workers Available Kolkata Call Girls Service Airport Kolkata ✔ 62971...
Book Sex Workers Available Kolkata Call Girls Service Airport Kolkata ✔ 62971...Book Sex Workers Available Kolkata Call Girls Service Airport Kolkata ✔ 62971...
Book Sex Workers Available Kolkata Call Girls Service Airport Kolkata ✔ 62971...
 
Model Call Girls In Pazhavanthangal WhatsApp Booking 7427069034 call girl ser...
Model Call Girls In Pazhavanthangal WhatsApp Booking 7427069034 call girl ser...Model Call Girls In Pazhavanthangal WhatsApp Booking 7427069034 call girl ser...
Model Call Girls In Pazhavanthangal WhatsApp Booking 7427069034 call girl ser...
 
📞 Contact Number 8617697112 VIP Ganderbal Call Girls
📞 Contact Number 8617697112 VIP Ganderbal Call Girls📞 Contact Number 8617697112 VIP Ganderbal Call Girls
📞 Contact Number 8617697112 VIP Ganderbal Call Girls
 
Borum Call Girls Service ☎ ️93326-06886 ❤️‍🔥 Enjoy 24/7 Escort Service
Borum Call Girls Service ☎ ️93326-06886 ❤️‍🔥 Enjoy 24/7 Escort ServiceBorum Call Girls Service ☎ ️93326-06886 ❤️‍🔥 Enjoy 24/7 Escort Service
Borum Call Girls Service ☎ ️93326-06886 ❤️‍🔥 Enjoy 24/7 Escort Service
 
Hotel And Home Service Available Kolkata Call Girls Park Street ✔ 6297143586 ...
Hotel And Home Service Available Kolkata Call Girls Park Street ✔ 6297143586 ...Hotel And Home Service Available Kolkata Call Girls Park Street ✔ 6297143586 ...
Hotel And Home Service Available Kolkata Call Girls Park Street ✔ 6297143586 ...
 
Hotel And Home Service Available Kolkata Call Girls Howrah ✔ 6297143586 ✔Call...
Hotel And Home Service Available Kolkata Call Girls Howrah ✔ 6297143586 ✔Call...Hotel And Home Service Available Kolkata Call Girls Howrah ✔ 6297143586 ✔Call...
Hotel And Home Service Available Kolkata Call Girls Howrah ✔ 6297143586 ✔Call...
 
Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
Zirakpur Call Girls👧 Book Now📱8146719683 📞👉Mohali Call Girl Service No Advanc...
 
Thane West \ Escort Service in Mumbai - 450+ Call Girl Cash Payment 983332523...
Thane West \ Escort Service in Mumbai - 450+ Call Girl Cash Payment 983332523...Thane West \ Escort Service in Mumbai - 450+ Call Girl Cash Payment 983332523...
Thane West \ Escort Service in Mumbai - 450+ Call Girl Cash Payment 983332523...
 
Kanpur call girls 📞 8617697112 At Low Cost Cash Payment Booking
Kanpur call girls 📞 8617697112 At Low Cost Cash Payment BookingKanpur call girls 📞 8617697112 At Low Cost Cash Payment Booking
Kanpur call girls 📞 8617697112 At Low Cost Cash Payment Booking
 
Science City Kolkata ( Call Girls ) Kolkata ✔ 6297143586 ✔ Hot Model With Sex...
Science City Kolkata ( Call Girls ) Kolkata ✔ 6297143586 ✔ Hot Model With Sex...Science City Kolkata ( Call Girls ) Kolkata ✔ 6297143586 ✔ Hot Model With Sex...
Science City Kolkata ( Call Girls ) Kolkata ✔ 6297143586 ✔ Hot Model With Sex...
 
Hotel And Home Service Available Kolkata Call Girls Diamond Harbour ✔ 6297143...
Hotel And Home Service Available Kolkata Call Girls Diamond Harbour ✔ 6297143...Hotel And Home Service Available Kolkata Call Girls Diamond Harbour ✔ 6297143...
Hotel And Home Service Available Kolkata Call Girls Diamond Harbour ✔ 6297143...
 
𓀤Call On 6297143586 𓀤 Ultadanga Call Girls In All Kolkata 24/7 Provide Call W...
𓀤Call On 6297143586 𓀤 Ultadanga Call Girls In All Kolkata 24/7 Provide Call W...𓀤Call On 6297143586 𓀤 Ultadanga Call Girls In All Kolkata 24/7 Provide Call W...
𓀤Call On 6297143586 𓀤 Ultadanga Call Girls In All Kolkata 24/7 Provide Call W...
 
Hire 💕 8617697112 North Sikkim Call Girls Service Call Girls Agency
Hire 💕 8617697112 North Sikkim Call Girls Service Call Girls AgencyHire 💕 8617697112 North Sikkim Call Girls Service Call Girls Agency
Hire 💕 8617697112 North Sikkim Call Girls Service Call Girls Agency
 
Verified Trusted Call Girls Tambaram Chennai ✔✔7427069034 Independent Chenna...
Verified Trusted Call Girls Tambaram Chennai ✔✔7427069034  Independent Chenna...Verified Trusted Call Girls Tambaram Chennai ✔✔7427069034  Independent Chenna...
Verified Trusted Call Girls Tambaram Chennai ✔✔7427069034 Independent Chenna...
 
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
Call Girls Bellandur ☎ 7737669865☎ Book Your One night Stand (Bangalore)
 
Bhimtal ❤CALL GIRL 8617697112 ❤CALL GIRLS IN Bhimtal ESCORT SERVICE❤CALL GIRL
Bhimtal ❤CALL GIRL 8617697112 ❤CALL GIRLS IN Bhimtal ESCORT SERVICE❤CALL GIRLBhimtal ❤CALL GIRL 8617697112 ❤CALL GIRLS IN Bhimtal ESCORT SERVICE❤CALL GIRL
Bhimtal ❤CALL GIRL 8617697112 ❤CALL GIRLS IN Bhimtal ESCORT SERVICE❤CALL GIRL
 

There Be Dragons: Ten Potential Pitfalls of Gamification