<s>
Fallout	B-Application
Shelter	I-Application
is	O
a	O
free-to-play	O
construction	B-Application
and	I-Application
management	I-Application
simulation	I-Application
video	I-Application
game	I-Application
developed	O
by	O
Bethesda	O
Game	O
Studios	O
,	O
with	O
assistance	O
by	O
Behaviour	O
Interactive	O
,	O
and	O
published	O
by	O
Bethesda	O
Softworks	O
.	O
</s>
<s>
Part	O
of	O
the	O
Fallout	B-Application
series	I-Application
,	O
it	O
was	O
released	O
worldwide	O
for	O
iOS	B-Application
devices	O
in	O
June	O
2015	O
,	O
for	O
Android	B-Application
devices	O
in	O
August	O
2015	O
,	O
for	O
Windows	O
in	O
July	O
2016	O
,	O
for	O
Xbox	B-Device
One	I-Device
in	O
February	O
2017	O
,	O
and	O
for	O
Nintendo	B-Application
Switch	I-Application
and	O
PlayStation	B-Operating_System
4	I-Operating_System
in	O
June	O
2018	O
.	O
</s>
<s>
The	O
game	O
tasks	O
the	O
player	O
with	O
building	O
and	O
effectively	O
managing	O
their	O
own	O
Vault	B-Application
,	O
a	O
fallout	B-Application
shelter	I-Application
.	O
</s>
<s>
Upon	O
release	O
,	O
Fallout	B-Application
Shelter	I-Application
received	O
mostly	O
positive	O
reviews	O
.	O
</s>
<s>
Critics	O
enjoyed	O
the	O
game	O
's	O
extension	O
of	O
the	O
Fallout	B-Application
universe	O
,	O
the	O
core	O
gameplay	O
,	O
and	O
its	O
visual	O
style	O
.	O
</s>
<s>
The	O
original	O
Fallout	B-Application
Shelter	I-Application
is	O
a	O
single-player	O
experience	O
,	O
but	O
a	O
multiplayer	O
board	O
game	O
adaptation	O
of	O
the	O
game	O
was	O
released	O
in	O
late	O
2020	O
.	O
</s>
<s>
In	O
Fallout	B-Application
Shelter	I-Application
,	O
players	O
build	O
and	O
manage	O
their	O
own	O
Vault	B-Application
as	O
an	O
Overseer	O
–	O
the	O
leader	O
and	O
coordinator	O
of	O
their	O
Vault	B-Application
.	O
</s>
<s>
Players	O
guide	O
and	O
direct	O
the	O
citizens	O
of	O
the	O
Vault	B-Application
,	O
known	O
as	O
dwellers	O
,	O
and	O
need	O
to	O
keep	O
them	O
happy	O
through	O
meeting	O
their	O
needs	O
such	O
as	O
power	O
,	O
food	O
,	O
and	O
water	O
.	O
</s>
<s>
They	O
rescue	O
dwellers	O
from	O
the	O
wasteland	O
and	O
assign	O
them	O
to	O
different	O
resource-generating	O
buildings	O
in	O
the	O
Vault	B-Application
,	O
using	O
the	O
SPECIAL	O
statistics	O
system	O
from	O
the	O
other	O
Fallout	B-Application
games	I-Application
.	O
</s>
<s>
Many	O
different	O
rooms	O
can	O
be	O
built	O
in	O
the	O
Vault	B-Application
,	O
providing	O
different	O
items	O
or	O
stat	O
bonuses	O
.	O
</s>
<s>
In	O
a	O
2009	O
interview	O
with	O
Engadget	B-Application
,	O
while	O
talking	O
about	O
a	O
possible	O
Fallout	B-Application
game	I-Application
for	O
iOS	B-Application
,	O
Bethesda	O
's	O
Todd	O
Howard	O
said	O
that	O
the	O
world	O
of	O
Fallout	B-Application
was	O
"	O
unique	O
enough	O
that	O
it	O
could	O
translate	O
to	O
any	O
platform	O
"	O
,	O
revealing	O
that	O
several	O
designs	O
of	O
an	O
iOS	B-Application
Fallout	B-Application
game	I-Application
were	O
pitched	O
and	O
rejected	O
.	O
</s>
<s>
On	O
November	O
5	O
,	O
2009	O
John	O
Carmack	O
,	O
who	O
at	O
that	O
time	O
worked	O
for	O
id	O
Software	O
,	O
said	O
that	O
while	O
it	O
was	O
nothing	O
official	O
yet	O
,	O
he	O
had	O
an	O
internal	O
proof	O
of	O
concept	O
made	O
for	O
a	O
Fallout	B-Application
iPhone	O
game	O
.	O
</s>
<s>
Fallout	B-Application
Shelter	I-Application
was	O
announced	O
by	O
Bethesda	O
during	O
its	O
press	O
conference	O
at	O
the	O
Electronic	O
Entertainment	O
Expo	O
on	O
June	O
14	O
,	O
2015	O
,	O
where	O
it	O
was	O
confirmed	O
the	O
game	O
is	O
a	O
free-to-play	O
title	O
that	O
would	O
be	O
released	O
for	O
iOS	B-Application
the	O
same	O
day	O
.	O
</s>
<s>
It	O
was	O
developed	O
in	O
a	O
partnership	O
with	O
Behaviour	O
Interactive	O
,	O
and	O
was	O
built	O
using	O
the	O
Unity	B-Application
game	I-Application
engine	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
also	O
released	O
for	O
Android	B-Application
devices	O
on	O
August	O
13	O
,	O
2015	O
.	O
</s>
<s>
According	O
to	O
Pete	O
Hines	O
,	O
vice	O
president	O
of	O
Bethesda	O
,	O
the	O
game	O
is	O
inspired	O
by	O
other	O
video	O
games	O
like	O
Little	B-Application
Computer	I-Application
People	I-Application
,	O
Progress	B-Protocol
Quest	I-Protocol
,	O
XCOM	O
,	O
SimCity	B-Application
and	O
FTL	B-Application
:	I-Application
Faster	I-Application
Than	I-Application
Light	I-Application
.	O
</s>
<s>
On	O
June	O
30	O
,	O
2015	O
,	O
the	O
game	O
added	O
a	O
character	O
from	O
Fallout	B-Application
4	I-Application
as	O
a	O
dweller	O
for	O
the	O
first	O
time	O
.	O
</s>
<s>
Preston	O
Garvey	O
,	O
the	O
leader	O
of	O
Commonwealth	B-Application
Minutemen	I-Application
,	O
was	O
added	O
as	O
a	O
reward	O
available	O
from	O
lunchboxes	O
,	O
along	O
with	O
his	O
Laser	O
Musket	O
weapon	O
,	O
which	O
can	O
be	O
equipped	O
by	O
other	O
Vault	B-Application
dwellers	I-Application
.	O
</s>
<s>
On	O
July	O
10	O
,	O
2015	O
,	O
the	O
game	O
received	O
its	O
first	O
update	O
which	O
fixed	O
some	O
problems	O
while	O
adding	O
a	O
new	O
"	O
Photo	O
Mode	O
"	O
feature	O
that	O
allows	O
players	O
to	O
capture	O
and	O
share	O
images	O
of	O
their	O
Vault	B-Application
.	O
</s>
<s>
On	O
August	O
13	O
,	O
a	O
major	O
update	O
was	O
launched	O
for	O
the	O
iOS	B-Application
version	O
,	O
alongside	O
the	O
release	O
of	O
the	O
Android	B-Application
version	O
,	O
adding	O
mole	O
rats	O
and	O
deathclaws	O
as	O
new	O
enemies	O
.	O
</s>
<s>
On	O
October	O
15	O
,	O
the	O
game	O
received	O
update	O
1.2	O
that	O
added	O
cloud	O
saving	O
,	O
survival	B-Application
mode	O
,	O
Russian	O
language	O
support	O
and	O
Piper	O
,	O
a	O
character	O
from	O
Fallout	B-Application
4	I-Application
available	O
only	O
for	O
iOS	B-Application
version	O
through	O
lunchboxes	O
.	O
</s>
<s>
On	O
December	O
10	O
,	O
the	O
game	O
received	O
update	O
1.3	O
which	O
added	O
new	O
features	O
like	O
pets	O
including	O
Dogmeat	O
,	O
ability	O
to	O
evict	O
Vault	B-Application
dwellers	I-Application
,	O
a	O
sell	O
all	O
function	O
for	O
clearing	O
out	O
the	O
inventory	O
at	O
once	O
and	O
new	O
pickup	O
lines	O
and	O
conversations	O
for	O
Vault	B-Application
dwellers	I-Application
.	O
</s>
<s>
Update	O
1.5	O
was	O
released	O
in	O
April	O
2016	O
,	O
adding	O
customization	O
options	O
for	O
Vault	B-Application
dwellers	I-Application
along	O
with	O
the	O
ability	O
to	O
scrap	O
unwanted	O
items	O
and	O
support	O
for	O
3D	O
Touch	O
.	O
</s>
<s>
Bethesda	O
released	O
an	O
Xbox	B-Device
One	I-Device
version	O
of	O
Fallout	B-Application
Shelter	I-Application
on	O
February	O
7	O
,	O
2017	O
;	O
the	O
title	O
supports	O
Xbox	B-Device
Play	O
Anywhere	O
,	O
allowing	O
synchronizing	O
of	O
data	O
and	O
achievements	O
for	O
users	O
with	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
On	O
March	O
28	O
,	O
2017	O
,	O
Bethesda	O
released	O
the	O
PC	O
version	O
of	O
the	O
game	O
on	O
Steam	B-Application
.	O
</s>
<s>
During	O
the	O
Bethesda	O
E3	O
2018	O
Showcase	O
on	O
June	O
10	O
,	O
2018	O
,	O
the	O
game	O
was	O
announced	O
and	O
later	O
released	O
that	O
day	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
and	O
Nintendo	B-Application
Switch	I-Application
platforms	O
,	O
making	O
it	O
the	O
very	O
first	O
game	O
in	O
the	O
Fallout	B-Application
series	I-Application
to	O
be	O
available	O
on	O
a	O
Nintendo	O
platform	O
,	O
not	O
counting	O
the	O
Fallout	B-Application
pinball	O
adaptation	O
that	O
was	O
released	O
as	O
part	O
of	O
the	O
Bethesda	O
Pinball	O
collection	O
in	O
late	O
2016	O
for	O
Zen	B-Application
Pinball	I-Application
2	I-Application
,	O
which	O
was	O
available	O
on	O
the	O
Wii	O
U	O
.	O
</s>
<s>
In	O
May	O
2020	O
,	O
Fallout	B-Application
Shelter	I-Application
was	O
added	O
to	O
Tesla	O
vehicles	O
for	O
in-car	O
play	O
while	O
vehicle	O
is	O
in	O
Park	O
.	O
</s>
<s>
On	O
June	O
21	O
,	O
2018	O
,	O
Bethesda	O
Softworks	O
LLC	O
sued	O
Warner	O
Bros	O
.	O
Entertainment	O
and	O
Behaviour	O
Interactive	O
Inc	O
.	O
over	O
Westworld	O
,	O
an	O
Android/iOS	O
mobile	O
game	O
based	O
on	O
the	O
science	O
fiction/thriller	O
TV	O
series	O
&	O
franchise	O
Westworld	O
,	O
alleging	O
that	O
the	O
game	O
is	O
a	O
"	O
blatant	O
rip-off	O
"	O
of	O
Fallout	B-Application
Shelter	I-Application
.	O
</s>
<s>
In	O
a	O
suit	O
filed	O
in	O
a	O
Maryland	O
U.S.	O
District	O
Court	O
,	O
Bethesda	O
alleges	O
that	O
Westworld	O
—	O
developed	O
by	O
Behaviour	O
—	O
"	O
has	O
the	O
same	O
or	O
highly	O
similar	O
game	O
design	O
,	O
art	O
style	O
,	O
animations	O
,	O
features	O
and	O
other	O
gameplay	O
elements	O
"	O
as	O
Fallout	B-Application
Shelter	I-Application
and	O
Westworld	O
illegally	O
"	O
uses	O
the	O
same	O
copyrighted	O
computer	O
code	O
"	O
as	O
Fallout	B-Application
Shelter	I-Application
.	O
</s>
<s>
Fallout	B-Application
Shelter	I-Application
received	O
"	O
mixed	O
"	O
reviews	O
,	O
according	O
to	O
video	O
game	O
review	B-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
Justin	O
Davis	O
of	O
IGN	O
remarked	O
"	O
Fallout	B-Application
Shelter	I-Application
is	O
desperately	O
in	O
need	O
of	O
a	O
set	O
of	O
endgame	O
goals	O
or	O
resource	O
sinks	O
to	O
look	O
forward	O
to.	O
"	O
</s>
<s>
Daniel	O
Tack	O
of	O
Game	O
Informer	O
summarized	O
the	O
visuals	O
as	O
"	O
flavorful	O
in	O
the	O
iconic	O
Vault	B-Application
Boy	O
aesthetic.	O
"	O
</s>
<s>
Chris	O
Carter	O
remarked	O
that	O
"	O
visually	O
,	O
Fallout	B-Application
Shelter	I-Application
is	O
far	O
more	O
impressive	O
than	O
most	O
resource-management	O
games	O
on	O
the	O
market	O
"	O
.	O
</s>
<s>
Jason	O
Faulkner	O
of	O
Gamezebo	O
found	O
the	O
graphics	O
"	O
impressive	O
"	O
,	O
writing	O
"	O
not	O
only	O
are	O
the	O
cute	O
little	O
Vault	B-Application
dwellers	I-Application
presented	O
in	O
sharp	O
,	O
Fallout-faithful	O
style	O
,	O
but	O
the	O
vault	B-Application
itself	O
is	O
quite	O
stunning.	O
"	O
</s>
<s>
Fallout	B-Application
Shelter	I-Application
became	O
the	O
most	O
popular	O
free	O
iOS	B-Application
application	I-Application
in	O
the	O
U.S.	O
and	O
UK	O
within	O
a	O
day	O
of	O
its	O
release	O
,	O
and	O
the	O
most	O
popular	O
iOS	B-Application
game	O
on	O
June	O
26	O
,	O
2015	O
.	O
</s>
<s>
By	O
June	O
12	O
,	O
2016	O
,	O
Fallout	B-Application
Shelter	I-Application
had	O
over	O
50	O
million	O
players	O
.	O
</s>
<s>
Because	O
of	O
Fallout	B-Application
Shelters	I-Application
success	O
,	O
the	O
studio	O
has	O
been	O
working	O
on	O
a	O
second	O
mobile	O
title	O
.	O
</s>
<s>
On	O
the	O
day	O
of	O
its	O
release	O
,	O
Fallout	B-Application
Shelter	I-Application
became	O
the	O
third-highest-grossing	O
game	O
in	O
the	O
iOS	B-Application
App	I-Application
Store	I-Application
.	O
</s>
