<s>
Sudden	B-Application
Attack	I-Application
(	O
Korean	B-Operating_System
:	O
서든어택	O
)	O
is	O
a	O
free-to-play	O
multiplayer	O
first-person	O
shooter	O
online	O
game	O
developed	O
by	O
the	O
South	O
Korean	B-Operating_System
company	O
GameHi	O
.	O
</s>
<s>
On	O
December	O
2	O
,	O
2013	O
,	O
Nexon	O
America	O
CEO	O
Min	O
Kim	O
announced	O
plans	O
to	O
discontinue	O
Sudden	B-Application
Attack	I-Application
North	O
American	O
service	O
.	O
</s>
<s>
Nexon	O
America	O
terminated	O
Sudden	B-Application
Attack	I-Application
on	O
January	O
29	O
,	O
2014	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Sudden	B-Protocol
Attack	I-Protocol
2	I-Protocol
was	O
launched	O
in	O
2016	O
.	O
</s>
<s>
A	O
Few	O
months	O
later	O
,	O
Gamania	O
,	O
which	O
had	O
published	O
many	O
of	O
Nexon	O
's	O
games	O
including	O
Counter-Strike	B-Application
Online	I-Application
,	O
obtained	O
the	O
rights	O
.	O
</s>
