<s>
It	O
was	O
released	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
on	O
March	O
21	O
,	O
2017	O
,	O
for	O
Microsoft	B-Application
Windows	I-Application
and	O
macOS	B-Application
on	O
April	O
21	O
,	O
2017	O
,	O
and	O
for	O
Linux	B-Application
on	O
April	O
28	O
,	O
2017	O
.	O
</s>
<s>
A	O
Nintendo	B-Application
Switch	I-Application
version	O
of	O
the	O
game	O
was	O
released	O
on	O
January	O
10	O
,	O
2019	O
.	O
</s>
<s>
He	O
previously	O
had	O
developed	O
the	O
game	O
Mountain	B-Application
,	O
in	O
which	O
players	O
have	O
limited	O
interactions	O
with	O
a	O
virtual	O
mountain	B-Application
.	O
</s>
<s>
Mountain	B-Application
had	O
been	O
developed	O
using	O
the	O
Unity	B-Application
game	I-Application
engine	I-Application
,	O
which	O
OReilly	O
had	O
to	O
learn	O
.	O
</s>
<s>
As	O
he	O
worked	O
with	O
it	O
,	O
he	O
saw	O
the	O
potential	O
about	O
representing	O
nature	O
with	O
real-time	O
systems	O
within	O
Unity	B-Application
,	O
forming	O
part	O
of	O
the	O
inspiration	O
for	O
Everything	O
.	O
</s>
<s>
The	O
game	O
was	O
published	O
by	O
Double	O
Fine	O
Productions	O
,	O
which	O
had	O
also	O
published	O
Mountain	B-Application
.	O
</s>
<s>
He	O
also	O
considered	O
Everything	O
to	O
be	O
a	O
continuation	O
of	O
themes	O
he	O
had	O
introduced	O
in	O
Mountain	B-Application
.	O
</s>
<s>
The	O
game	O
was	O
developed	O
by	O
a	O
three-person	O
team	O
,	O
including	O
Damien	O
Di	O
Fede	O
,	O
who	O
had	O
assisted	O
OReilly	O
in	O
programming	O
Mountain	B-Application
.	O
</s>
