<s>
Fishdom	B-Application
is	O
a	O
puzzle	O
game	O
developed	O
by	O
Playrix	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
Mac	B-Operating_System
OS	I-Operating_System
,	O
Nintendo	B-Device
DS	I-Device
,	O
Nintendo	B-Device
DSi	I-Device
,	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
Android	B-Application
,	O
iOS	B-Application
,	O
and	O
iPadOS	B-Operating_System
.	O
</s>
<s>
The	O
object	O
of	O
the	O
game	O
is	O
to	O
solve	O
puzzles	O
and	O
earn	O
coins	O
to	O
set	O
up	O
and	O
decorate	O
a	O
virtual	O
aquarium	B-Application
.	O
</s>
<s>
Adorned	O
and	O
themed	O
tanks	O
can	O
be	O
used	O
as	O
a	O
smartphone	B-Application
screensaver	O
.	O
</s>
<s>
Levels	O
are	O
based	O
on	O
a	O
standard	O
for	O
"	O
match	B-Application
three	I-Application
"	O
mechanics	O
:	O
the	O
player	O
swaps	O
two	O
adjacent	O
gems	O
to	O
make	O
matches	O
of	O
three	O
or	O
more	O
.	O
</s>
<s>
When	O
three	O
or	O
more	O
objects	O
are	O
matched	O
simultaneously	O
,	O
one	O
of	O
the	O
bonuses	O
appears	O
:	O
firecrackers	B-Application
,	O
depth	O
bombs	O
,	O
dynamite	O
charges	O
,	O
or	O
lightning	O
.	O
</s>
<s>
The	O
original	O
game	O
was	O
released	O
in	O
2008	O
for	O
PC	O
and	O
was	O
adapted	O
for	O
smartphones	B-Application
by	O
2015	O
.	O
</s>
<s>
Fishdom	B-Application
ranks	O
among	O
the	O
most	O
popular	O
games	O
from	O
developer	O
Playrix	O
and	O
received	O
generally	O
positive	O
reviews	O
.	O
</s>
<s>
iParenting	O
Media	O
named	O
Fishdom	B-Application
H2O	O
:	O
Hidden	O
Odyssey	O
one	O
of	O
the	O
Greatest	O
Video	O
Games	O
of	O
2009	O
.	O
</s>
<s>
According	O
to	O
the	O
analytics	O
of	O
Sensor	O
Tower	O
,	O
Fishdom	B-Application
was	O
a	O
top	O
game	O
in	O
the	O
category	O
Puzzle&Decorate	O
with	O
around	O
15.6	O
million	O
downloads	O
in	O
2020	O
.	O
</s>
<s>
The	O
game	O
was	O
ranked	O
16th	O
on	O
the	O
annual	O
App	B-Application
Store	I-Application
list	O
of	O
the	O
best	O
free	O
games	O
(	O
8th	O
for	O
iPad	B-Device
,	O
19th	O
for	O
iPhone	B-Device
)	O
.	O
</s>
<s>
This	O
portion	O
of	O
negative	O
reception	O
can	O
also	O
be	O
applied	O
to	O
Playrix	O
's	O
other	O
games	O
,	O
such	O
as	O
Homescapes	B-Application
and	O
Gardenscapes	B-Application
:	I-Application
New	I-Application
Acres	I-Application
,	O
some	O
also	O
applying	O
it	O
to	O
the	O
company	O
itself	O
.	O
</s>
