<s>
It	O
was	O
originally	O
released	O
on	O
17	O
December	O
1998	O
for	O
PlayStation	B-Device
only	O
in	O
Japan	O
.	O
</s>
<s>
The	O
game	O
was	O
later	O
ported	O
to	O
Microsoft	B-Application
Windows	I-Application
under	O
the	O
name	O
Aquarium	O
and	O
was	O
released	O
in	O
Europe	O
on	O
25	O
December	O
2000	O
.	O
</s>
<s>
The	O
gameplay	O
is	O
very	O
similar	O
to	O
the	O
other	O
games	O
in	O
the	O
Theme	O
series	O
,	O
and	O
the	O
graphics	O
are	O
similar	O
to	O
Theme	B-Application
Hospital	I-Application
.	O
</s>
<s>
In	O
Theme	B-Application
Aquarium	I-Application
,	O
the	O
player	O
begins	O
with	O
an	O
expanse	O
of	O
empty	O
floor	O
space	O
and	O
the	O
task	O
is	O
to	O
construct	O
a	O
maritime	O
attraction	O
for	O
visitors	O
which	O
must	O
be	O
filled	O
with	O
interesting	O
and	O
appropriate	O
creatures	O
at	O
the	O
same	O
time	O
as	O
dealing	O
with	O
all	O
the	O
attendant	O
challenges	O
of	O
running	O
a	O
profitable	O
business	O
.	O
</s>
<s>
In	O
a	O
1999	O
interview	O
,	O
Bullfrog	O
Productions	O
co-founder	O
Les	O
Edgar	O
stated	O
that	O
Theme	B-Application
Aquarium	I-Application
was	O
produced	O
and	O
tested	O
in	O
the	O
United	O
Kingdom	O
,	O
but	O
implemented	O
in	O
Japan	O
.	O
</s>
<s>
His	O
intention	O
was	O
to	O
"	O
cross	O
barriers	O
"	O
between	O
the	O
United	O
Kingdom	O
and	O
Japan	O
,	O
and	O
produce	O
a	O
game	O
suitable	O
for	O
both	O
markets	O
,	O
as	O
,	O
due	O
to	O
the	O
success	O
of	O
Theme	B-Application
Park	I-Application
and	O
Populous	B-Application
in	O
Japan	O
,	O
he	O
thought	O
Bullfrog	O
were	O
more	O
successful	O
than	O
other	O
companies	O
in	O
producing	O
games	O
that	O
were	O
successful	O
there	O
.	O
</s>
<s>
In	O
2012	O
,	O
Bullfrog	O
programmer	O
Jonty	O
Barnes	O
asked	O
fourteen	O
ex-colleagues	O
about	O
the	O
game	O
,	O
none	O
of	O
whom	O
were	O
familiar	O
with	O
it	O
,	O
with	O
one	O
describing	O
it	O
as	O
"	O
one	O
of	O
those	O
obscure	O
titles	O
"	O
,	O
although	O
he	O
also	O
stated	O
that	O
it	O
was	O
known	O
that	O
it	O
was	O
intended	O
for	O
a	O
Japan-only	O
release	O
on	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
This	O
version	O
was	O
not	O
to	O
be	O
on	O
PlayStation	B-Device
,	O
the	O
game	O
's	O
original	O
platform	O
,	O
but	O
rather	O
on	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
The	O
"	O
Theme	O
"	O
brand	O
was	O
dropped	O
from	O
the	O
title	O
as	O
it	O
was	O
deemed	O
that	O
the	O
game	O
was	O
not	O
at	O
a	O
level	O
of	O
quality	O
to	O
be	O
considered	O
part	O
of	O
the	O
Theme	O
series	O
or	O
feature	O
the	O
Bullfrog	O
branding	O
,	O
and	O
was	O
merely	O
included	O
as	O
part	O
of	O
the	O
PlayStation	B-Device
release	O
to	O
generate	O
interest	O
from	O
the	O
success	O
of	O
previous	O
Theme	O
games	O
in	O
Japan	O
.	O
</s>
<s>
Theme	B-Application
Aquarium	I-Application
has	O
been	O
released	O
as	O
a	O
PS	B-Application
one	I-Application
Classic	I-Application
in	O
Japan	O
,	O
allowing	O
it	O
to	O
be	O
played	O
on	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
It	O
was	O
released	O
on	O
24	O
September	O
2009	O
and	O
was	O
available	O
to	O
download	O
from	O
the	O
PlayStation	B-Device
Network	I-Device
store	O
.	O
</s>
