Why and how Kancolle has got the wide range of popularity? Text-mining approach Yuhsuke KOYAMA Shibaura Institute of Technology
Kantai Collection (Kancolle) Free to play web browser game Developed by DMM.com & Kadokawa Games Player: teitoku(admiral) of Japanese imperial navy
Command the fleets to beat the enemies
All fleet members(ships) are called Kan-musu(艦娘) Moe-anthropomorophised cute girls One of the most active online games in Japan Daily active user: half million Started on April 23,2013 This presentation: How had Kancolle become popular?
Kan-musu examples Akagi Kongo Nagato Aircraft carrier Battleship Battleship More than 100 Kan-musus
How getting popular at beginning? 2 core routes: BBS(2 channel) and twitter&pixiv BBS: military fans and early players community Average PC bowser game players are older than those of other device players in Japan.
30’s and 40’s are majority Their familiar online media is BBS: 2 channel
Many of them use 2 channel for 10 years or longer Twitter: Eshi(絵師)=illustrators and fan community Many of Kan-musu designers are posted their illustratio ns to pixiv.net and twitter.
Kancolle threads in 2 channel BBS 2 channel(2ch) ni-channe l https://www.2ch.net/ Largest BBS in Japan Admirals in 2 channel shared the hints and tips of game strategies only chatted Kancolle theread 20000 write-ins/day in peak One of the most active thre ad in 2 channel
Number of write-ins per day in 2 channel Kancolle threads Starting Period Maturity Period Declining Period 2ch officials Today’s prohibited to presentation copy write- ins to blogs 10000/day 5 6 7 8 9 10 11 12 1 2 2013 2014
Text mining approach Collect the logs of Kancolle threads in 2channel Using web-crawling system Analised them Using some text mining techniques Using KHCoder free text-mining software
Popularity of Kan-musu Rank is relatively stable. However, share in total appearance of Kan-musu names is not high. Every Kan-musu has its own fans. For Some Kan-musu… It seems someone suddenly appeared in top 10 and soo n disappeared
She debut in the game this week. special personality are created and granted by admirals
Akagi: heavy eating
Nagato: bullish but love to cute things Player-created personality often has become trigger that some Kan-musu become popular
Hirfindahl Hirschmann Index 400 s : (%) share of Kan-musu i 350 i ‘s name in al appeared Ka 300 n-musu name in thread Used to estimate the degre 250 e of monopoly in economic 200 s Very alike to Japanese id 150 le groups 100 HHI of AKB48 elections(20 50 13) is 277.18 Topics are decentralized 0 2nd 6th 10th 14th 18th 22th 30th
For what admirals pay? co-occurred words with “Kakin（課金）” Starting 2-3 weeks: to solve resource constraint for conti nuing game play
materials(資材), fuels(燃料), bullets(弾薬) During some event periods, Kakin was also co-occuerd with “event(イベント)” or “materials(資源)” “dock(ドック)” keeps high rank
It has permanent for playing game comfortably After starting resource constraint periods are over, admirals have no necessity to pay. “furniture（家具）” No “pay to win” game design But, low ranking …“fast repair medicine(バケツ)” Heavy payers are called “米帝(U.S. imperialism)”
Very active fan activity # Dojin Circles in Comiket 2013 winter Fate 354 BASARA 422 idlemaster 930
Kancolle fan activity is very active Kancolle 1138
Comic market 2013 winter: only 8 months after released Kancolle is the second largest Toho project 2272 dojin genre in game area.
3rd in all areas 0 500 1000 1500 2000 2500
Kadokawa games allowed Kancolle fans for dojin movement
Summary We analyzed why and how Kancolle has got the w ide range of popularity. Through text mining of 2 channel threads
Very primitive analysis, but collect more than 100,000 threads Kancolle boom is bottom-up movement. Free to play, not competitive game
DAU is kept half million Popularity to characters are widely distributed
It is very alike to Japanese Idle groups Fan activity is very active