<s>
Bad	B-Application
Rats	I-Application
:	I-Application
The	I-Application
Rats	I-Application
 '	I-Application
Revenge	I-Application
is	O
a	O
2009	O
puzzle	O
video	O
game	O
developed	O
by	O
Invent4	B-Application
Entertainment	I-Application
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
was	O
released	O
as	O
Invent4	B-Application
Entertainment	I-Application
's	O
debut	O
game	O
on	O
20	O
July	O
2009	O
via	O
Steam	B-Application
,	O
followed	O
by	O
releases	O
on	O
other	O
services	O
in	O
2010	O
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
is	O
considered	O
an	O
oddity	O
for	O
being	O
released	O
on	O
Steam	B-Application
while	O
the	O
platform	O
's	O
catalogue	O
was	O
still	O
hand-curated	O
.	O
</s>
<s>
It	O
became	O
a	O
popular	O
gag	O
gift	O
on	O
Steam	B-Application
,	O
leading	O
to	O
more	O
than	O
400,000	O
owners	O
by	O
2018	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Bad	B-Application
Rats	I-Application
Show	O
,	O
was	O
released	O
on	O
the	O
seventh	O
anniversary	O
of	O
Bad	B-Application
Rats	I-Application
in	O
2016	O
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
is	O
a	O
physics-based	O
puzzle	O
video	O
game	O
in	O
a	O
style	O
similar	O
to	O
The	O
Incredible	O
Machine	O
and	O
Armadillo	B-Application
Run	I-Application
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
was	O
developed	O
by	O
Invent4	B-Application
Entertainment	I-Application
,	O
an	O
indie	O
game	O
studio	O
based	O
in	O
Porto	O
Alegre	O
.	O
</s>
<s>
Carlos	O
Alberto	O
Kunkel	O
Bülow	O
designed	O
the	O
3D	O
models	O
and	O
their	O
animations	O
,	O
while	O
graffiti	B-Application
imagery	O
was	O
provided	O
by	O
Mateus	O
"	O
Mes	O
"	O
Silva	O
Brum	O
.	O
</s>
<s>
A	O
demo	O
of	O
Bad	B-Application
Rats	I-Application
was	O
released	O
through	O
Invent4	B-Application
Entertainment	I-Application
's	O
website	O
on	O
20	O
May	O
2009	O
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
was	O
released	O
via	O
Steam	B-Application
on	O
20	O
July	O
2009	O
.	O
</s>
<s>
It	O
was	O
made	O
available	O
through	O
Invent4	B-Application
Entertainment	I-Application
's	O
website	O
in	O
January	O
2010	O
,	O
as	O
well	O
as	O
GamersGate	O
and	O
Direct2Drive	O
in	O
February	O
2010	O
.	O
</s>
<s>
In	O
April	O
that	O
year	O
,	O
the	O
company	O
announced	O
partnerships	O
that	O
would	O
see	O
Bad	B-Application
Rats	I-Application
(	O
and	O
future	O
games	O
)	O
released	O
by	O
Strategy	O
First	O
in	O
North	O
America	O
,	O
by	O
Akella	O
in	O
Russia	O
,	O
and	O
by	O
Micromedia	O
in	O
the	O
Netherlands	O
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
received	O
no	O
reviews	O
indexed	O
by	O
the	O
review	B-Application
aggregator	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
In	O
a	O
2015	O
retrospective	O
,	O
Nathan	O
Grayson	O
of	O
Kotaku	O
stated	O
that	O
the	O
game	O
remained	O
the	O
worst	O
game	O
available	O
on	O
Steam	B-Application
.	O
</s>
<s>
In	O
2018	O
,	O
Adam	O
Heron	O
of	O
Hardcore	O
Gaming	O
101	O
described	O
Bad	B-Application
Rats	I-Application
as	O
"	O
possibly	O
...	O
the	O
worst	O
physics-based	O
puzzle	O
game	O
of	O
all	O
time	O
"	O
.	O
</s>
<s>
He	O
further	O
faulted	O
the	O
game	O
's	O
user	B-Application
interface	I-Application
,	O
which	O
he	O
considered	O
unfriendly	O
and	O
unintuitive	O
.	O
</s>
<s>
Richard	O
Cobbett	O
and	O
Wes	O
Fenlon	O
of	O
PC	O
Gamer	O
included	O
the	O
cover	O
art	O
of	O
Bad	B-Application
Rats	I-Application
in	O
their	O
list	O
of	O
the	O
"	O
worst	O
PC	O
game	O
box	O
art	O
ever	O
"	O
,	O
calling	O
it	O
a	O
"	O
monstrosity	O
"	O
.	O
</s>
<s>
According	O
to	O
Grayson	O
,	O
Bad	B-Application
Rats	I-Application
was	O
an	O
oddity	O
on	O
Steam	B-Application
when	O
it	O
was	O
released	O
,	O
as	O
the	O
platform	O
's	O
catalogue	O
was	O
still	O
hand-curated	O
by	O
its	O
owner	O
,	O
Valve	O
,	O
before	O
the	O
launch	O
of	O
the	O
Steam	B-Application
Greenlight	O
programme	O
in	O
2012	O
.	O
</s>
<s>
Augusto	O
Bülow	O
stated	O
that	O
Bad	B-Application
Rats	I-Application
only	O
became	O
popular	O
several	O
years	O
following	O
its	O
release	O
,	O
after	O
negative	O
reviews	O
by	O
popular	O
YouTubers	O
turned	O
attention	O
toward	O
the	O
game	O
.	O
</s>
<s>
Bad	B-Application
Rats	I-Application
became	O
an	O
internet	O
meme	O
and	O
was	O
frequently	O
used	O
as	O
a	O
gag	O
gift	O
by	O
Steam	B-Application
users	O
.	O
</s>
<s>
In	O
a	O
2016	O
interview	O
,	O
Bülow	O
said	O
that	O
he	O
was	O
happy	O
with	O
this	O
situation	O
,	O
saying	O
that	O
,	O
because	O
Bad	B-Application
Rats	I-Application
had	O
been	O
"	O
planned	O
to	O
be	O
funny	O
"	O
,	O
"	O
If	O
people	O
are	O
laughing	O
while	O
playing	O
the	O
game	O
,	O
that	O
's	O
fine	O
.	O
</s>
<s>
In	O
July	O
2018	O
,	O
based	O
on	O
leaked	O
Steam	B-Application
player	O
counts	O
,	O
Bad	B-Application
Rats	I-Application
was	O
estimated	O
to	O
have	O
476,787	O
unique	O
players	O
on	O
the	O
platform	O
.	O
</s>
<s>
According	O
to	O
Bülow	O
,	O
a	O
sequel	O
to	O
Bad	B-Application
Rats	I-Application
was	O
planned	O
from	O
the	O
outset	O
,	O
originally	O
with	O
the	O
intent	O
to	O
include	O
dogs	O
alongside	O
cats	O
.	O
</s>
<s>
A	O
second	O
Bad	B-Application
Rats	I-Application
game	O
was	O
teased	O
through	O
videos	O
,	O
starting	O
in	O
December	O
2014	O
,	O
and	O
announced	O
as	O
Bad	B-Application
Rats	I-Application
Show	O
in	O
a	O
trailer	O
during	O
E3	O
2016	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
20	O
July	O
2016	O
,	O
the	O
seventh	O
anniversary	O
of	O
Bad	B-Application
Rats	I-Application
.	O
</s>
<s>
An	O
in-development	O
mobile	O
version	O
of	O
Bad	B-Application
Rats	I-Application
,	O
designated	O
the	O
Pocket	O
Edition	O
,	O
was	O
shown	O
off	O
by	O
Bülow	O
in	O
September	O
2017	O
.	O
</s>
