<s>
Sky	B-Application
Force	I-Application
is	O
a	O
vertically	O
scrolling	O
shoot	O
'	O
em	O
up	O
video	O
game	O
series	O
created	O
by	O
the	O
Polish	O
video	O
game	O
developer	O
Infinite	O
Dreams	O
Inc	O
.	O
</s>
<s>
The	O
first	O
title	O
in	O
the	O
series	O
was	O
originally	O
released	O
for	O
Symbian	B-Operating_System
and	O
Pocket	B-Device
PC	I-Device
in	O
2004	O
and	O
was	O
ported	O
to	O
Palm	B-Operating_System
webOS	I-Operating_System
(	O
2005	O
)	O
,	O
iOS	B-Operating_System
(	O
2009	O
)	O
and	O
Android	B-Application
(	O
2010	O
)	O
.	O
</s>
<s>
The	O
second	O
outing	O
was	O
initially	O
released	O
for	O
Symbian	B-Operating_System
,	O
Pocket	B-Device
PC	I-Device
and	O
Palm	B-Operating_System
webOS	I-Operating_System
in	O
2006	O
and	O
was	O
later	O
released	O
for	O
iOS	B-Operating_System
(	O
2009	O
)	O
,	O
Android	B-Application
(	O
2010	O
)	O
and	O
PSP	B-Operating_System
(	O
2011	O
)	O
.	O
</s>
<s>
The	O
PSP	B-Operating_System
version	O
of	O
"	O
Sky	B-Application
Force	I-Application
Reloaded	I-Application
"	O
was	O
simply	O
named	O
"	O
Sky	B-Application
Force	I-Application
"	O
.	O
</s>
<s>
It	O
received	O
a	O
remake	O
for	O
mobile	O
(	O
Android	B-Application
)	O
in	O
2016	O
,	O
with	O
a	O
PC	O
,	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
and	O
Xbox	B-Device
One	I-Device
versions	O
released	O
in	O
2017	O
,	O
and	O
also	O
a	O
Nintendo	B-Application
Switch	I-Application
version	O
released	O
in	O
2018	O
.	O
</s>
<s>
The	O
PSP	B-Operating_System
version	O
of	O
the	O
game	O
received	O
a	O
Metacritic	O
score	O
of	O
69	O
out	O
of	O
100	O
,	O
based	O
on	O
6	O
reviews	O
.	O
</s>
<s>
The	O
third	O
part	O
in	O
the	O
series	O
was	O
released	O
in	O
2014	O
for	O
both	O
iOS	B-Operating_System
and	O
Android	B-Application
as	O
a	O
Free-to-play	O
game	O
.	O
</s>
<s>
The	O
iOS	B-Operating_System
version	O
of	O
the	O
game	O
received	O
a	O
favorable	O
Metacritic	O
score	O
of	O
83	O
out	O
of	O
100	O
,	O
based	O
on	O
8	O
reviews	O
.	O
</s>
<s>
This	O
title	O
is	O
the	O
Windows	B-Application
version	O
of	O
Sky	B-Application
Force	I-Application
2014	O
and	O
was	O
released	O
on	O
Steam	B-Application
in	O
2015	O
and	O
the	O
Apple	O
TV	O
4	O
in	O
2016	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
PlayStation	B-Operating_System
4	I-Operating_System
and	O
PlayStation	B-Device
Vita	I-Device
via	O
PlayStation	B-Device
Network	I-Device
in	O
summer	O
2016	O
.	O
</s>
<s>
It	O
's	O
also	O
available	O
for	O
the	O
Wii	B-Device
U	I-Device
on	O
the	O
Nintendo	O
eShop	O
.	O
</s>
