Let me see, I got the system on release day of Ocarina of Time in June. After that I got my second game early 2012, along with my third, which were 3D Land and Kart. Therefore, for 2011, I have only one game. Of course there's time spent in some apps and everything, but I won't mention those. In the history of my 3DS, the only months where I haven't touched it for at least a minute are October 2013 and July 2014. I have 9 3DS retail games and the Ambassador VC games.
2011
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Steps: 957
Total playtime: 112:52
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The Legend of Zelda: Ocarina of Time 3D; 73:33
2012
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Steps: 34,526
Total playtime: 189:53
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Resident Evil: Revelations; 34:58
Mario Kart 7; 32:52
Super Mario 3D World; 20:32
2013
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Steps: 11,076
Total playtime: 152:41
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The Legend of Zelda: A Link Between Worlds; 30:38
Luigi's Mansion 2; 28:34
Fire Emblem: The Sacred Stones (VC); 23:17
2014
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Steps: 106
Total playtime: 37:15
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The Legend of Zelda: Ocarina of Time 3D; 8:24
The Legend of Zelda: Spirit Tracks (DS); 4:59
Mario Kart 7; 4:18
I'm shocked myself. I didn't realise how little I played the 3DS this year. It's probably because I haven't got a single new game this year. I appear to just replay Zelda games when I don't have anything new
.
EDIT: And I see you guys bring your 3DS with you a lot! I never do that. Should I? I'm pretty sure I'll beat you all easily if I bring it with me every time
.