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SMS Game Development

What Is SMS?. Short Text Message Service. Built into GSM from the start so everyone in Europe can ?text" everyone else. 20 b messages exchanged every month. Not yet successful in North America carrier walled gardens breaking down but lower prices for voice

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SMS Game Development

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    1. SMS Game Development Making the Most of a Sucky Technology

    2. What Is SMS? Short Text Message Service

    3. Why Develop SMS Games? Everyone in Europe texts Comfortable with technology Perceived as cool (while WAP sucks) Potential large audience (and market)

    4. How Does it Work?

    5. SMSC Can Send & Receive with Game Server User requests game by sending SMS to that number

    6. SMS Costs Money Typically 10/message (7p in UK)

    7. Game Should be Playable in Just a Few Message Exchanges Otherwise will be too costly for many players

    8. Each Message Must Advance the Game In most games, the result of interaction can be minor (turn left 30 degrees; a card is played). With SMS, a handful of interactions must combine to a satisfying game. A non-trivial design challenge.

    9. Each Message <=160 Characters Thats a =hard= limit. . .

    10. Tricks to Help 2, not two.

    11. No Graphics Means... Hard to show physical layout with pure text. Text adventures (N thru Door)but a lot of text used for navigation. Text representations (Ship 2 > 3,7)but hard to visualize.

    12. Cant Rely on a Monospace Font This: looks like this:

    13. Avoid Games that Depend on Locations Most electronic games are an exploration of space

    14. A Players Orders Are Text A command-line environment.

    15. Latency is Off the Scale Typically, a minute or more.

    16. Dealing with Latency

    17. Multiplayer or Die Head-to-Head games

    18. Smart Messaging Message concatenation (459 characters)

    19. EMS: Enhanced Message Service Message concatenation (3-6 messages)

    20. MMS: Multimedia Message Service GIF89a animations, PNGs, JPEGs 640x480 in theory, in practice 174x133

    21. Punisher: The Mobile Game

    22. Botfighters

    23. Fisu

    24. Mobile Rome

    25. Doing Better Messaging & Challenges

    26. URLs Nokia information & emulator for MMS: http://www.forum.nokia.com/main/1,35452,1_2_7,00.html (requires free registration)

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