<s>
The	O
Steam	B-Device
Controller	I-Device
is	O
a	O
game	B-Device
controller	I-Device
developed	O
by	O
Valve	O
for	O
use	O
with	O
personal	O
computers	O
running	O
Steam	B-Application
on	O
Windows	O
,	O
macOS	B-Application
,	O
Linux	B-Application
,	O
smartphones	B-Application
or	O
SteamOS	B-Application
.	O
</s>
<s>
It	O
was	O
released	O
in	O
November	O
2015	O
along	O
with	O
Valve	O
's	O
Steam	B-Device
Machine	I-Device
and	O
discontinued	O
in	O
November	O
2019	O
.	O
</s>
<s>
The	O
Steam	B-Device
Controller	I-Device
features	O
two	O
clickable	O
trackpads	O
(	O
as	O
opposed	O
to	O
the	O
more	O
typical	O
thumbsticks	O
on	O
modern	O
console	O
controllers	O
)	O
,	O
and	O
fourteen	O
buttons	O
,	O
including	O
face	O
,	O
shoulder	O
,	O
and	O
undergrip	O
buttons	O
.	O
</s>
<s>
The	O
trackpads	O
include	O
haptic	B-Device
feedback	I-Device
;	O
Chris	O
Kohler	O
of	O
Wired	O
described	O
using	O
the	O
controller	O
while	O
playing	O
Civilization	B-Application
V	I-Application
at	O
a	O
Valve	O
press	O
event	O
,	O
and	O
noted	O
that	O
as	O
he	O
used	O
the	O
trackpad	O
to	O
move	O
the	O
mouse	O
cursor	O
,	O
electromagnets	O
within	O
the	O
controller	O
created	O
audio	O
and	O
tactile	O
feedback	O
as	O
if	O
he	O
were	O
using	O
a	O
trackball	O
.	O
</s>
<s>
Although	O
the	O
controller	O
is	O
designed	O
for	O
the	O
Steam	B-Device
Machine	I-Device
platform	O
,	O
it	O
can	O
also	O
be	O
used	O
with	O
Steam	B-Application
on	O
existing	O
PCs	O
.	O
</s>
<s>
The	O
controller	O
also	O
included	O
gyroscopic	B-Application
sensors	I-Application
to	O
detect	O
the	O
relative	O
orientation	O
of	O
the	O
controller	O
.	O
</s>
<s>
The	O
controller	O
is	O
presently	O
designed	O
to	O
be	O
used	O
within	O
Steam	B-Application
's	O
Big	O
Picture	O
mode	O
;	O
this	O
enables	O
the	O
player	O
to	O
access	O
detailed	O
options	O
for	O
setting	O
up	O
the	O
various	O
features	O
of	O
the	O
controller	O
on	O
a	O
per-game	O
basis	O
including	O
button/trackpad	O
mapping	O
and	O
sensitivity	O
as	O
well	O
as	O
accessing	O
other	O
users	O
 '	O
shared	O
controller	O
configuration	O
to	O
use	O
themselves	O
.	O
</s>
<s>
The	O
Steamworks	O
API	O
provides	O
means	O
for	O
developers	O
to	O
provide	O
more	O
detailed	O
settings	O
for	O
the	O
Steam	B-Device
Controller	I-Device
when	O
in	O
Big	O
Picture	O
mode	O
.	O
</s>
<s>
Outside	O
of	O
Big	O
Picture	O
mode	O
,	O
the	O
controller	O
otherwise	O
behaves	O
as	O
a	O
standard	O
two-stick	O
controller	O
,	O
though	O
Valve	O
does	O
plan	O
on	O
updating	O
Steam	B-Application
to	O
allow	O
retaining	O
the	O
previously	O
set	O
Big	O
Picture	O
mode	O
per-game	O
settings	O
.	O
</s>
<s>
The	O
touchscreen	O
would	O
have	O
acted	O
like	O
a	O
mousepad	O
and	O
allow	O
players	O
to	O
perform	O
actions	O
that	O
typically	O
are	O
not	O
capable	O
on	O
controllers	O
,	O
operating	O
directly	O
with	O
Steam	B-Application
or	O
SteamOS	B-Application
and	O
overlaying	O
the	O
touchscreen	O
display	O
onto	O
the	O
players	O
 '	O
screens	O
to	O
allow	O
manipulation	O
of	O
the	O
game	O
without	O
diverting	O
attention	O
from	O
the	O
screen	O
.	O
</s>
<s>
However	O
,	O
at	O
the	O
January	O
2014	O
Steam	B-Application
Dev	O
Days	O
event	O
,	O
Valve	O
revealed	O
they	O
have	O
since	O
dropped	O
the	O
touchscreen	O
concept	O
from	O
the	O
controller	O
,	O
rearranged	O
existing	O
face	O
buttons	O
to	O
be	O
more	O
compatible	O
with	O
existing	O
games	O
.	O
</s>
<s>
As	O
opposed	O
to	O
their	O
plans	O
for	O
the	O
Steam	B-Device
Machine	I-Device
to	O
be	O
produced	O
by	O
multiple	O
third-parties	O
,	O
Valve	O
planned	O
to	O
be	O
the	O
sole	O
producer	O
of	O
the	O
Steam	B-Device
Controller	I-Device
;	O
Valve	O
's	O
Greg	O
Coomer	O
stated	O
that	O
this	O
decision	O
was	O
based	O
on	O
achieving	O
the	O
best	O
implementation	O
of	O
the	O
Controller	O
and	O
Valve	O
's	O
vision	O
for	O
the	O
device	O
,	O
noting	O
that	O
"	O
we	O
did	O
n’t	O
think	O
that	O
it	O
was	O
really	O
going	O
to	O
be	O
possible	O
to	O
outsource	O
the	O
design	O
for	O
manufacturing	O
and	O
the	O
finishing	O
of	O
the	O
controller	O
in	O
a	O
way	O
that	O
would	O
allow	O
third	O
parties	O
to	O
take	O
from	O
us	O
an	O
idea	O
or	O
a	O
reference	O
design	O
and	O
bring	O
it	O
to	O
market	O
soon	O
enough	O
"	O
.	O
</s>
<s>
,	O
Valve	O
was	O
working	O
with	O
Flex	O
robotic	O
assembly	O
line	O
in	O
Buffalo	O
Grove	O
,	O
Illinois	O
to	O
assemble	O
the	O
machines	O
;	O
jokingly	O
,	O
the	O
machines	O
have	O
been	O
given	O
Aperture	O
Science	O
branding	O
,	O
the	O
fictional	O
company	O
from	O
Valve	O
's	O
Portal	B-Application
series	O
,	O
presumably	O
until	O
the	O
products	O
later	O
discontinuation	O
.	O
</s>
<s>
Valve	O
has	O
added	O
improvements	O
to	O
the	O
controller	O
's	O
capabilities	O
based	O
on	O
public	O
feedback	O
following	O
its	O
launch	O
,	O
including	O
movement	O
and	O
aiming	O
controls	O
schemes	O
using	O
its	O
internal	O
gyroscope	B-Application
,	O
the	O
ability	O
to	O
trigger	O
actions	O
that	O
enable	O
cursor	O
movement	O
limited	O
to	O
certain	O
regions	O
on	O
a	O
UI	O
(	O
such	O
as	O
to	O
manipulate	O
a	O
game	O
's	O
mini-map	O
)	O
,	O
a	O
quick-access	O
popup	O
for	O
16	O
commands	O
that	O
can	O
act	O
similar	O
to	O
hotkeys	O
for	O
keyboard-and-mouse	O
games	O
,	O
cloud-based	O
controller	O
configuration	O
saving	O
,	O
and	O
support	O
for	O
non-Steam	O
games	O
that	O
otherwise	O
can	O
be	O
played	O
through	O
the	O
Steam	B-Application
Overlay	O
.	O
</s>
<s>
This	O
update	O
also	O
enabled	O
the	O
ability	O
to	O
customize	O
the	O
motion-sensing	O
controls	O
to	O
be	O
used	O
for	O
virtual	B-Application
reality	I-Application
games	O
.	O
</s>
<s>
Valve	O
afterwards	O
worked	O
on	O
supporting	O
similar	O
controller	O
customization	O
features	O
and	O
user	O
interfaces	O
to	O
other	O
compatible	O
controllers	O
,	O
and	O
released	O
the	O
first	O
such	O
update	O
in	O
the	O
Steam	B-Application
software	I-Application
for	O
Sony	O
's	O
DualShock	O
4	O
controller	O
in	O
December	O
2016	O
,	O
and	O
beta	O
support	O
for	O
other	O
controllers	O
including	O
Xbox	B-Device
One	I-Device
in	O
January	O
2017	O
.	O
</s>
<s>
Support	O
for	O
the	O
Nintendo	B-Device
Switch	I-Device
Pro	I-Device
Controller	I-Device
was	O
added	O
in	O
May	O
2018	O
.	O
</s>
<s>
While	O
other	O
controllers	O
can	O
be	O
used	O
on	O
Steam	B-Application
through	O
basic	O
operating	O
system	O
functionality	O
.	O
</s>
<s>
On	O
March	O
23	O
,	O
2016	O
,	O
Valve	O
announced	O
it	O
would	O
be	O
publicly	O
releasing	O
computer	O
aided	O
design	O
geometry	O
for	O
the	O
Steam	B-Device
controller	I-Device
.	O
</s>
<s>
In	O
May	O
2018	O
,	O
Valve	O
updated	O
the	O
controller	O
to	O
enable	O
its	O
Bluetooth	B-Protocol
communications	O
,	O
allowing	O
it	O
to	O
pair	O
with	O
mobile	O
devices	O
.	O
</s>
<s>
This	O
allows	O
the	O
controller	O
to	O
be	O
used	O
alongside	O
the	O
Steam	B-Application
Link	O
app	O
which	O
replaced	O
Steam	B-Application
Link	O
hardware	O
.	O
</s>
<s>
The	O
Steam	B-Device
Controller	I-Device
was	O
publicly	O
released	O
in	O
November	O
2015	O
,	O
alongside	O
the	O
release	O
of	O
Steam	B-Device
Machines	I-Device
.	O
</s>
<s>
By	O
June	O
2016	O
,	O
over	O
500,000	O
had	O
been	O
sold	O
and	O
by	O
October	O
,	O
nearly	O
one	O
million	O
had	O
sold	O
,	O
including	O
the	O
controllers	O
bundled	O
with	O
the	O
Steam	B-Device
Machines	I-Device
.	O
</s>
<s>
In	O
September	O
2018	O
,	O
Valve	O
disclosed	O
new	O
figures	O
showing	O
approximately	O
1.5	O
million	O
Steam	B-Device
Controllers	I-Device
have	O
connected	O
to	O
Steam	B-Application
,	O
with	O
about	O
14%	O
of	O
those	O
having	O
connected	O
to	O
Steam	B-Application
within	O
the	O
month	O
the	O
survey	O
was	O
performed	O
.	O
</s>
<s>
For	O
comparison	O
,	O
the	O
most	O
popular	O
controller	O
used	O
with	O
Steam	B-Application
is	O
the	O
Xbox	B-Device
360	O
controller	O
,	O
at	O
around	O
27.2	O
million	O
connections	O
and	O
14%	O
of	O
those	O
connected	O
within	O
the	O
month	O
of	O
the	O
survey	O
.	O
</s>
