<s>
Polybius	B-Application
is	O
a	O
2017	O
shoot	O
'	O
em	O
up	O
video	O
game	O
developed	O
and	O
published	O
by	O
Llamasoft	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
May	O
2017	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
,	O
with	O
PlayStation	B-Device
VR	I-Device
support	O
available	O
.	O
</s>
<s>
A	O
version	O
for	O
Microsoft	B-Application
Windows	I-Application
was	O
released	O
in	O
December	O
2018	O
.	O
</s>
<s>
The	O
game	O
takes	O
its	O
name	O
and	O
inspiration	O
from	O
the	O
fictitious	O
1981	O
arcade	O
game	O
Polybius	B-Application
.	O
</s>
<s>
Llamasoft	O
's	O
Polybius	B-Application
is	O
a	O
3D	O
shooting	O
game	O
that	O
combines	O
elements	O
of	O
racing	O
games	O
while	O
minimizing	O
virtual	B-Application
reality	I-Application
sickness	I-Application
.	O
</s>
<s>
Designed	O
for	O
VR	O
,	O
it	O
is	O
also	O
playable	O
in	O
2D	O
on	O
PlayStation	B-Operating_System
4	I-Operating_System
and	O
supports	O
3D	B-Algorithm
television	I-Algorithm
output	O
.	O
</s>
<s>
Released	O
on	O
PlayStation	O
store	O
in	O
2017	O
and	O
on	O
Steam	B-Application
in	O
2018	O
,	O
the	O
game	O
was	O
influenced	O
by	O
several	O
classic	O
games	O
and	O
aimed	O
to	O
induce	O
the	O
psychological	O
state	O
of	O
flow	O
.	O
</s>
<s>
Polybius	B-Application
received	O
positive	O
reviews	O
,	O
with	O
an	O
average	O
Metacritic	O
score	O
of	O
84/100	O
.	O
</s>
<s>
Llamasoft	O
's	O
Polybius	B-Application
is	O
a	O
fast-paced	O
3D	O
shooting	O
game	O
with	O
elements	O
of	O
racing	O
games	O
.	O
</s>
<s>
The	O
game	O
's	O
play	O
was	O
designed	O
to	O
minimize	O
virtual	B-Application
reality	I-Application
sickness	I-Application
by	O
the	O
use	O
of	O
continuous	O
forward	O
motion	O
with	O
limited	O
abrupt	O
changes	O
and	O
no	O
interruptions	O
to	O
gameplay	O
other	O
than	O
controlled	O
breaks	O
at	O
the	O
end	O
of	O
each	O
level	O
;	O
however	O
,	O
the	O
game	O
does	O
include	O
intense	O
visuals	O
.	O
</s>
<s>
Although	O
designed	O
as	O
a	O
VR	O
game	O
,	O
Polybius	B-Application
is	O
fully	O
playable	O
in	O
2D	O
on	O
a	O
standard	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
and	O
also	O
includes	O
support	O
for	O
3D	B-Algorithm
television	I-Algorithm
output	O
.	O
</s>
<s>
In	O
2016	O
,	O
Llamasoft	O
announced	O
a	O
game	O
called	O
Polybius	B-Application
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
with	O
support	O
for	O
the	O
PlayStation	B-Device
VR	I-Device
.	O
</s>
<s>
Polybius	B-Application
was	O
added	O
on	O
the	O
PlayStation	O
store	O
on	O
Tuesday	O
May	O
9	O
,	O
2017	O
.	O
</s>
<s>
In	O
early	O
marketing	O
,	O
co-author	O
Jeff	O
Minter	O
claimed	O
to	O
have	O
been	O
permitted	O
to	O
play	O
the	O
original	O
Polybius	B-Application
arcade	O
machine	O
in	O
a	O
warehouse	O
in	O
Basingstoke	B-Application
.	O
</s>
<s>
He	O
said	O
it	O
was	O
instead	O
based	O
on	O
his	O
interest	O
in	O
the	O
ability	O
of	O
video	O
games	O
to	O
induce	O
the	O
psychological	O
state	O
of	O
flow	O
(	O
also	O
called	O
"	O
being	O
in	O
the	O
zone	O
"	O
)	O
and	O
his	O
own	O
observations	O
of	O
positive	O
psychological	O
effects	O
as	O
a	O
result	O
of	O
playing	O
VR	O
games	O
,	O
most	O
notably	O
the	O
unreleased	O
VR	O
version	O
of	O
TxK	B-Device
.	O
</s>
<s>
Minter	O
also	O
cited	O
influence	O
from	O
multiple	O
other	O
classic	O
games	O
including	O
Space	B-Application
Harrier	I-Application
,	O
After	B-Application
Burner	I-Application
,	O
the	O
1983	O
vector	O
game	O
Star	B-Application
Wars	I-Application
,	O
S.T.U.N.	O
</s>
<s>
Runner	O
,	O
Zarch	B-Application
and	O
quite	O
possibly	O
NanoTek	B-Device
Warrior	I-Device
.	O
</s>
<s>
On	O
July	O
13	O
,	O
2017	O
,	O
industrial	O
rock	O
band	O
Nine	O
Inch	O
Nails	O
released	O
a	O
music	O
video	O
for	O
the	O
song	O
"	O
Less	O
Than	O
"	O
,	O
featuring	O
a	O
woman	O
playing	O
Polybius	B-Application
.	O
</s>
<s>
As	O
of	O
November	O
7	O
,	O
2018	O
,	O
the	O
game	O
page	O
on	O
the	O
Steam	B-Application
store	I-Application
is	O
live	O
,	O
with	O
a	O
Q4	O
release	O
date	O
,	O
playable	O
in	O
VR	O
or	O
non-VR	O
.	O
</s>
<s>
Reception	O
Polybius	B-Application
received	O
positive	O
reviews	O
from	O
game	O
critics	O
.	O
</s>
<s>
On	O
review	B-Application
aggregator	I-Application
Metacritic	O
,	O
it	O
holds	O
an	O
average	O
score	O
of	O
84	O
out	O
of	O
100	O
,	O
based	O
on	O
13	O
reviews	O
,	O
indicating	O
"	O
generally	O
favorable	O
reviews	O
"	O
.	O
</s>
