<s>
Universe	B-Application
Sandbox	I-Application
is	O
a	O
series	O
of	O
interactive	O
space	O
sandbox	O
gravity	O
simulator	O
educational	B-Application
software	I-Application
video	O
games	O
.	O
</s>
<s>
Using	O
Universe	B-Application
Sandbox	I-Application
,	O
users	O
can	O
see	O
the	O
effects	O
of	O
gravity	O
on	O
objects	O
in	O
the	O
universe	O
and	O
run	O
scale	O
simulations	O
of	O
the	O
Solar	O
System	O
,	O
various	O
galaxies	B-Application
or	O
other	O
simulations	O
,	O
while	O
at	O
the	O
same	O
time	O
interacting	O
and	O
maintaining	O
control	O
over	O
gravity	O
,	O
time	O
,	O
and	O
other	O
objects	O
in	O
the	O
universe	O
,	O
such	O
as	O
moons	O
,	O
planets	O
,	O
asteroids	O
,	O
comets	B-Language
,	O
and	O
black	B-Application
holes	I-Application
.	O
</s>
<s>
The	O
original	O
Universe	B-Application
Sandbox	I-Application
was	O
only	O
available	O
for	O
Windows-based	O
PCs	O
,	O
but	O
an	O
updated	O
version	O
was	O
released	O
for	O
Windows	B-Application
,	O
macOS	B-Application
,	O
and	O
Linux	B-Application
in	O
2015	O
.	O
</s>
<s>
Universe	B-Application
Sandbox	I-Application
was	O
designed	O
by	O
Dan	O
Dixon	O
,	O
who	O
released	O
the	O
first	O
version	O
in	O
May	O
2008	O
.	O
</s>
<s>
In	O
November	O
2018	O
,	O
the	O
original	O
Universe	B-Application
Sandbox	I-Application
was	O
renamed	O
to	O
Universe	B-Application
Sandbox	I-Application
Legacy	O
,	O
and	O
the	O
new	O
version	O
was	O
then	O
renamed	O
to	O
Universe	B-Application
Sandbox	I-Application
in	O
December	O
.	O
</s>
<s>
Both	O
realistic	O
and	O
fictional	O
simulations	O
appear	O
in	O
Universe	B-Application
Sandbox	I-Application
,	O
with	O
each	O
area	O
of	O
outer	O
space	O
being	O
placed	O
by	O
default	O
or	O
according	O
to	O
the	O
player	O
's	O
preference	O
.	O
</s>
<s>
Real	O
simulations	O
include	O
the	O
Solar	O
System	O
,	O
which	O
includes	O
the	O
eight	O
planets	O
,	O
five	O
minor	O
planets	O
,	O
160+	O
moons	O
,	O
and	O
hundreds	O
of	O
asteroids	O
;	O
and	O
predictions	O
of	O
future	O
events	O
such	O
as	O
the	O
Andromeda	O
and	O
Milky	O
Way	O
galaxy	B-Application
collision	O
which	O
will	O
occur	O
in	O
3.8	O
to	O
4.5	O
billion	O
years	O
.	O
</s>
<s>
During	O
gameplay	O
,	O
the	O
player	O
may	O
be	O
introduced	O
to	O
the	O
regions	O
that	O
include	O
the	O
100	O
largest	O
bodies	O
in	O
the	O
Solar	O
System	O
,	O
the	O
nearest	O
1000	O
stars	O
to	O
the	O
Sun	O
or	O
the	O
nearest	O
70	O
galaxies	B-Application
to	O
the	O
Milky	O
Way	O
.	O
</s>
<s>
Comets	B-Language
can	O
be	O
observed	O
colliding	O
into	O
planets	O
,	O
such	O
as	O
the	O
Shoemaker	O
Levy	O
9	O
's	O
collision	O
with	O
Jupiter	O
.	O
</s>
<s>
The	O
trans-Neptunian	O
object	O
2008	O
KV42	O
with	O
a	O
retrograde	O
motion	O
orbit	B-Application
can	O
be	O
seen	O
in	O
a	O
simulation	O
.	O
</s>
<s>
Visual	O
Lagrange	B-Application
points	I-Application
of	O
the	O
Earth	O
and	O
Moon	O
can	O
be	O
seen	O
,	O
along	O
with	O
the	O
galaxy	B-Application
and	O
star	O
system	O
.	O
</s>
<s>
The	O
gamma-ray	O
burst	O
locations	O
,	O
found	O
in	O
distant	O
galaxies	B-Application
,	O
can	O
be	O
found	O
.	O
</s>
<s>
Duncan	O
Geere	O
of	O
PC	O
Gamer	O
UK	O
gave	O
it	O
an	O
84/100	O
and	O
spoke	O
positively	O
of	O
the	O
game	O
,	O
"	O
Universe	B-Application
Sandbox	I-Application
is	O
not	O
going	O
to	O
change	O
your	O
life	O
.	O
</s>
<s>
Jules	O
of	O
Wired	O
said	O
in	O
their	O
review	O
,	O
"	O
I	O
've	O
seen	O
some	O
pretty	O
wonderful	O
interactive	O
programs	O
that	O
allow	O
you	O
and	O
your	O
family	O
to	O
explore	O
the	O
vast	O
regions	O
of	O
the	O
universe	O
,	O
but	O
nothing	O
nearly	O
as	O
enthralling	O
as	O
Universe	B-Application
Sandbox	I-Application
.	O
</s>
<s>
 [ ... ] 	O
Unlike	O
most	O
astronomy	O
software	O
that	O
just	O
shows	O
you	O
what	O
the	O
sky	O
looks	O
like	O
or	O
where	O
the	O
planets	O
are	O
,	O
Universe	B-Application
Sandbox	I-Application
is	O
a	O
powerful	O
gravity	O
simulator.	O
"	O
</s>
<s>
The	O
team	O
began	O
working	O
on	O
a	O
complete	O
rewrite	O
of	O
Universe	B-Application
Sandbox	I-Application
,	O
originally	O
titled	O
Universe	O
Sandbox²	O
,	O
in	O
2014	O
.	O
</s>
<s>
Some	O
of	O
the	O
new	O
features	O
include	O
atmospheres	O
being	O
shown	O
on	O
planets	O
,	O
dynamic	O
and	O
procedurally	O
generated	O
textures	O
on	O
stars	O
and	O
gas	O
giants	O
,	O
a	O
more	O
realistic	O
and	O
graphic	O
collision	O
system	O
,	O
3D	O
charts	O
in	O
chart	O
mode	O
,	O
simulation	O
of	O
stellar	O
evolution	O
,	O
procedural	O
detail	O
in	O
rings/particles	O
,	O
visualization	O
of	O
black	B-Application
holes	I-Application
,	O
simulation	O
of	O
fluid-like	O
objects	O
(	O
such	O
as	O
gas	O
clouds	O
,	O
nebulae	O
and	O
protoplanetary	O
disks	O
,	O
and	O
planetary	O
collisions	O
)	O
and	O
much	O
more	O
.	O
</s>
<s>
In	O
December	O
2018	O
,	O
the	O
game	O
was	O
renamed	O
from	O
Universe	O
Sandbox²	O
to	O
Universe	B-Application
Sandbox	I-Application
.	O
</s>
