<s>
It	O
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
OS	B-Operating_System
X	I-Operating_System
,	O
Linux	B-Application
,	O
and	O
iOS	B-Application
in	O
July	O
2014	O
.	O
</s>
<s>
The	O
game	O
is	O
an	O
idle	B-Application
game	I-Application
in	O
which	O
the	O
only	O
influence	O
the	O
player	O
can	O
have	O
on	O
the	O
game	O
is	O
at	O
the	O
start	O
of	O
the	O
game	O
where	O
the	O
player	O
is	O
tasked	O
to	O
draw	O
objects	O
.	O
</s>
<s>
To	O
develop	O
the	O
game	O
,	O
OReilly	O
started	O
learning	O
the	O
Unity	B-Application
engine	I-Application
himself	O
.	O
</s>
<s>
The	O
title	O
was	O
initially	O
released	O
on	O
July	O
1	O
,	O
2014	O
,	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
OS	B-Operating_System
X	I-Operating_System
,	O
Linux	B-Application
,	O
and	O
iOS	B-Application
platforms	O
;	O
an	O
Android	B-Application
version	O
was	O
delayed	O
until	O
August	O
19	O
,	O
2014	O
,	O
due	O
to	O
the	O
cost	O
of	O
getting	O
the	O
Unity	B-Application
plugin	O
for	O
the	O
operating	O
system	O
.	O
</s>
<s>
However	O
,	O
official	O
Android	B-Application
support	O
for	O
the	O
game	O
is	O
no	O
longer	O
available	O
.	O
</s>
<s>
OReilly	O
had	O
initially	O
envisioned	O
the	O
game	O
to	O
run	O
as	O
a	O
background	O
application	O
for	O
personal	O
computers	O
,	O
and	O
thus	O
had	O
not	O
spent	O
a	O
great	O
deal	O
of	O
time	O
optimizing	O
the	O
iOS	B-Application
version	O
through	O
the	O
Unity	B-Application
engine	I-Application
.	O
</s>
<s>
However	O
,	O
within	O
a	O
week	O
of	O
its	O
release	O
,	O
Mountain	O
was	O
one	O
of	O
the	O
top-selling	O
titles	O
on	O
various	O
app	B-Application
store	I-Application
charts	O
,	O
prompting	O
OReilly	O
to	O
develop	O
more	O
optimization	O
for	O
the	O
iOS	B-Application
and	O
pending	O
Android	B-Application
versions	O
.	O
</s>
<s>
The	O
game	O
was	O
generally	O
praised	O
by	O
reviewers	O
as	O
a	O
novel	O
concept	O
,	O
though	O
because	O
of	O
its	O
limited	O
interactivity	O
,	O
many	O
players	O
were	O
discontent	O
,	O
comparing	O
it	O
merely	O
to	O
a	O
screensaver	B-General_Concept
.	O
</s>
