Desktop Tower Defense

Desktop Tower Defense
Desktop Tower Defense in play
Developer(s)	Paul Preece
Distributor(s)	Kongregate, Handdrawngames.com, Casualcollective.com
Designer(s)	Paul Preece
Version	Pro (2.0)
Platform(s)	Adobe Flash
Release date(s)	March 3, 2007 (Version 1.0) March 21, 2007 (Version 1.2) June 22, 2007 (Version 1.5) October 13, 2008 (Version 1.9) April 1, 2009 (Pro)
Genre(s)	Tower defense
Mode(s)	Single-player, Multi-player
Media/distribution	online Flash game
System requirements Flash-compatible web browser, Adobe Flash

Desktop Tower Defense (DTD) is a Flash-based browser game of the tower defense game genre created by first-time game designer Paul Preece in March 2007. The game had been played over 15.7 million times as of July 2007,^[1] and was one of Webware 100's top ten entertainment web applications of 2007.^[2] DTD is available in an English, Spanish, German, French, or Italian interface. As of May 2009, a commercial Nintendo DS version exists and is heavily based on the flash game.

Gameplay

The game is played on a map resembling an office desktop. The player must stop a set number of enemies, known in the genre as "creeps," from reaching a set point on the playing field. This is accomplished by building and upgrading towers that shoot at, damage and kill the enemy creeps before they are able to reach their objective. Unlike many other tower defense games, the path of the creeps themselves is not set; instead, the towers built determine the path of the creeps, who take the shortest path they can find to the exit. The game does not allow the player to make an exit completely inaccessible, but key strategies revolve around guiding creeps into lengthy, meandering corridors.

The creeps come in waves at set intervals. Each wave of creeps has different characteristics, such as immunity to certain towers, extra resistance to certain towers, and the abilities to spawn new creeps, move faster than normal, or fly over the towers instead of following the maze. For each wave, the game rotates among the types of creeps. Several times during gameplay, boss waves will appear. These waves consists of just one or two large creeps each, that are extremely difficult to defeat.

The player begins with a set number of lives, and loses one for each creep that survives to reach its goal (the edge of the grid opposite its entry-point, on most courses). The game will end early in defeat if the player′s lives reach zero, and it provides no way to regenerate lost lives.

The game can be played in three difficulty levels: easy, medium, and hard. In addition, there are several challenge modes available for those seeking more from the game. Challenges range from "The 100", where the player must defeat 100 levels of successively difficult creeps, to "3K Fixed", where the player has to build a fixed set of towers (including the upgrades) with just 3000 gold. There are also various fun modes different in gameplay than the other, harder ones.

The voice when a player is asked to enter a score for the high score table is sampled from Ivor the Engine.

History

Development

Paul Preece got the inspiration for Desktop Tower Defense in 2006. He noticed a lack of tower defense games that allowed proper "mazing" (controlling movement of enemy forces by placing towers in their path). Preece did not immediately start work on Desktop Tower Defense because he considered Flash to be too difficult to learn. It was only after an acquaintance created Flash Element Tower Defense that Paul started work on the game. Starting from the "Autumn Tower Defense" map created for the RTS game Warcraft III, Paul Preece created a simple tower defense game that could be played using only a browser. Because of his lack of skill with computer graphics, he named the game's site HandDrawnGames.com^[3]

Distribution

Originally, the game was promoted through the web service StumbleUpon, getting further boosts from popular bloggers such as Michael Arrington.^[4] It eventually found its way onto several flash game sites such as Kongregate. The game's popularity was further increased by exposure on the internet pop-culture websites Digg and I-am-bored.com. It is now available on MySpace Games,^[5] and as part of the MindJolt collection on Facebook.

Updates

The original release version of the game, version 1.0 was released in early March 2007. On the 21st of the same month, version 1.2 was released introducing a new tower type, a new creep, and a new challenge mode among other updates.^[6] Version 1.5 of the game was released in late June 2007.^[7] Among the many cosmetic changes include new types of towers, creep types and challenge modes. While the changes diversify the overall gaming experience, some reviewers like Duncan Riley of TechCrunch and Jason Kottke reacted negatively to the update.^[8][9]

In December 2007, Preece and David Scott also created the Casual Collective, whose flagship game was a multiplayer version of DTD.^[10]

On October 13, 2008, version 1.9 was announced on the game's homepage.^[11] It was released to the Casual Collective and is both multi- and single-player.^[12]

On April 1, 2009 a beta version of DTD Pro, which is the 2.0 release of the game, was launched to the public on the Casual Collective. It contains a sandbox mode to allow granular customization of the game.^[13]

Reception and impact

This game was featured on Attack of the Show and the Lab with Leo on G4TechTV. It was also in the March issue of Game Informer, with a positive review. As of July 2007, the game had been played more than 15 million times since its inception in March of the same year. The game makes approximately $100,000 per year, according to its creator.^[14] Most of the revenue generated by the game is through the online ad-service AdSense.^[1][15][16]

The game itself has been billed as extremely addictive and thus time-consuming by many reviewers, such as those at TechCrunch. Reviewer Michael Arrington commented in jest the game "should be banned" because of this.^{[17][18][19][20][21]}

Due to success of the game, Paul Preece decided to leave his programming job to focus on making online games as an independent game developer. He and fellow game maker David Scott formed Casual Collective, a game development company.^{[22][23][24][25]} As of 2008, at least $1 million has been raised by the fledgling company mostly from venture capital firms such as Lightspeed Venture Partners.^[26][27]

It has been covered by publications like the Wall Street Journal.^[1] Desktop Tower Defense was ranked second within the top five games within the tower defense genre by Just-Whatever.^[28] The game was picked in a survey involving over 400,000 voters over 5000 other web applications as one of the top 100 best web applications, one of ten in the entertainment category for 2007 by Webware.^[2][29] In 2008, the game won a "Gleemie Award" and the developers received $5000 in prize money at the 2008 Independent Games Festival.^[30]

Sequel

In early 2010, a sequel, Desktop Defender, was made available on Facebook as application 113574023556. One should not confuse this with a malware package for Windows which bears the similar name “Desktop Defender 2010”.^{[citation needed]}

References

1. ^ ^{a b c} Rutkoff, Aaron (2007-06-20). "Strategy Game Pits Players Against Desktop Invasion". Time Waster (The Wall Street Journal Online). http://online.wsj.com/public/article/SB117987060189311315-X7F9b2kgxKbL1y0fZbnAHkOurR0_20080619.html. Retrieved 2007-07-21. 
2. ^ ^{a b} Webware staff (2007-06-18). "Webware 100 Award Winner - 'Desktop Tower Defense'". Webware 100. CNET Networks, Inc.. http://www.webware.com/8301-13546_109-9729507-29.html. Retrieved 2007-07-23. 
3. ^ Rutkoff, Aaron (June 20, 2007). "Strategy Game Pits Players Against Desktop Invasion". Wall Street Journal. Archived from the original on April 9, 2008. http://web.archive.org/web/20080409195906/http://online.wsj.com/public/article_print/SB117987060189311315.html. Retrieved 2009-06-23. 
4. ^ Arrington, Michael. "Desktop Tower Defense should be banned". TechCrunch. http://www.techcrunch.com/2007/04/16/desktop-tower-defense-should-be-banned/. Retrieved 2009-06-23. 
5. ^ Au, Wagner James (2007-05-27). "Desktop Tower of Money: 3 tips to profit from casual games". GigaOM (GigaOmniMedia, Inc.). http://gigaom.com/2007/05/27/desktop-tower-defense/. Retrieved 2007-07-23. 
6. ^ Preece, Paul (2007-07-16). "Desktop Tower Defense News". Handdrawn games. http://www.handdrawngames.com/DesktopTD/News.asp. Retrieved 2007-07-26. 
7. ^ "Desktop Tower Defense Upgrade". gHacks.net. 2007-06-24. http://www.ghacks.net/2007/06/24/desktop-tower-defense-upgrade/. Retrieved 2007-07-26. 
8. ^ Riley, Duncan (2007-06-22). "New Version of Desktop Tower Defense Released". TechCrunch. http://www.techcrunch.com/2007/06/22/new-version-of-desktop-tower-defense-released/. Retrieved 2007-07-23. 
9. ^ Kottke, Jason (2007-06-22). "BREAKING NEWS!!! The newest version of Desktop Tower Defense is out.". kottke.org. http://www.kottke.org/remainder/07/06/13924.html. Retrieved 2007-07-23. 
10. ^ "It's Alive!". Novel Concepts. http://novelconcepts.wordpress.com/2007/12/09/its-alive/. Retrieved 2008-08-18. 
11. ^ "Version 1.9 announced!". Paul Preece. http://handdrawngames.com/DesktopTD/News.asp. Retrieved 2008-11-12. 
12. ^ "2nd Dec Update". Casual Collective. 2008-12-02. http://www.casualcollective.com/groups/Desktop_TD/Forum/Updates/1490/1. Retrieved 2009-03-02. 
13. ^ "DTD Pro - Public Beta". Casual Collective. http://www.casualcollective.com/#groups/Site_News/news/7704/1. Retrieved 2009-04-18. 
14. ^ Au, Wagner (2007-05-27). "Desktop Tower of Money: 3 tips to profit from casual games". The GigaOM Network. http://gigaom.com/2007/05/27/desktop-tower-defense/. 
15. ^ Au, Wagner James (2007-07-21). "Google's got game, casual game that is". GigaOM (GigaOmniMedia, Inc.). http://gigaom.com/2007/07/21/googles-got-game-casual-game-that-is/. Retrieved 2007-07-23. 
16. ^ McCauley, Dennis (2007-05-04). "Massive reasons for gamers to cheer". Power Up (The Philadelphia Inquirer). Archived from the original on May 26, 2007. http://web.archive.org/web/20070526160822/http://www.philly.com/inquirer/weekend/20070504_Power_Up___Massive_reasons_for_gamers_to_cheer.html. Retrieved 2007-08-18. 
17. ^ Arrington, Michael (2007-04-16). "Desktop Tower Defense Should Be Banned". TechCrunch. http://www.techcrunch.com/2007/04/16/desktop-tower-defense-should-be-banned/. Retrieved 2007-07-21. 
18. ^ "Desktop Tower Defense should be banned". Holy Shmoly!. 2007-04-14. http://ocaoimh.ie/2007/04/14/desktop-tower-defense-should-be-banned/. Retrieved 2007-07-23. 
19. ^ "Desktop Tower Defense". Tsaiberspace. 2007-06-23. http://www.tsaiberspace.net/blog/2007/06/23/desktop-tower-defense/. Retrieved 2007-07-23. 
20. ^ Merrill, Andy (2007-04-17). "Desktop Tower Defense Review". Jigsaw hc's Rants & Reviews. andymerrill.com. http://www.andymerrill.com/rantreview/2007/04/desktop-tower-defense-review.html. Retrieved 2007-07-23. 
21. ^ Olandres, Abraham (2007-06-18). "Desktop Tower Defense". YugaTech: Philippine Technology News & Reviews. http://www.yugatech.com/blog/pc-gaming/desktop-tower-defense/. Retrieved 2007-07-27. 
22. ^ Riley, Duncan (2007-06-08). "Desktop Tower Defense Creates Startup". TechCrunch. http://www.techcrunch.com/2007/06/08/desktop-tower-defense-spurs-startup/. Retrieved 2007-07-21. 
23. ^ Arrington, Michael (2007-06-19). "Desktop Tower Defense Played 15 Million Times". TechCrunch. http://www.techcrunch.com/2007/06/19/desktop-tower-defense-played-15-million-times/. Retrieved 2007-07-21. 
24. ^ Preece, Paul (2007-06-04). "I quit!". Novel Concepts (WordPress.com). http://novelconcepts.wordpress.com/2007/06/04/i-quit/. Retrieved 2007-07-23. 
25. ^ "Making serious cash off casual web games". The Startup Game (Business2.com). 2007-08-03. Archived from the original on September 12, 2007. http://web.archive.org/web/20070912105609/http://blogs.business2.com/startups/2007/08/david-scott-is-.html. Retrieved 2007-08-17. 
26. ^ Krangel, Eric (2008-11-18). "'Desktop Tower Defense' Maker Raises $1 Million For More Addictive Timewasters". Digital Business Live (Silicon Alley Insider). http://www.alleyinsider.com/2008/11/desktop-tower-defense-maker-raises-1-million-for-more-addictive-timewasters. Retrieved 2008-12-15. 
27. ^ Needleman, Rafe (2008-11-18). "Next level: Tower Defense creators build new game company". Webware (CNet). http://news.cnet.com/8301-17939_109-10100740-2.html. Retrieved 2008-12-15. 
28. ^ "Top 5 Tower Defense Games". Just-Whatever.com. 2007-06-04. http://www.just-whatever.com/2007/06/04/top-5-tower-defense-games/. Retrieved 2007-07-23. 
29. ^ Webware staff (2007-06-18). "The top 100 Webware sites for 2007". Webware 100. CNET Networks, Inc.. http://www.webware.com/html/ww/100.html. Retrieved 2007-07-23. 
30. ^ "2008 Independent Games Festival Winners". The 11th Annual Independent Games Festival. Independent Games Festival. 2008. http://www.igf.com/2008finalistswinners.html. Retrieved 2008-12-15. 

External links

• Desktop Tower Defense 1.5 - official site
• Desktop Tower Defense Pro - official site