<s>
Slay	B-Application
the	I-Application
Spire	I-Application
is	O
a	O
roguelike	O
deck-building	O
video	O
game	O
developed	O
by	O
American	O
studio	O
Mega	O
Crit	O
and	O
published	O
by	O
Humble	O
Bundle	O
.	O
</s>
<s>
The	O
game	O
was	O
first	O
released	O
in	O
early	O
access	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
macOS	B-Application
,	O
and	O
Linux	B-Application
in	O
late	O
2017	O
,	O
with	O
an	O
official	O
release	O
in	O
January	O
2019	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
in	O
May	O
2019	O
,	O
for	O
Nintendo	B-Application
Switch	I-Application
in	O
June	O
2019	O
and	O
for	O
Xbox	B-Device
One	I-Device
in	O
August	O
2019	O
.	O
</s>
<s>
An	O
iOS	B-Application
version	O
was	O
released	O
in	O
June	O
2020	O
,	O
with	O
an	O
Android	B-Application
version	O
released	O
in	O
February	O
2021	O
.	O
</s>
<s>
In	O
Slay	B-Application
the	I-Application
Spire	I-Application
,	O
the	O
player	O
,	O
through	O
one	O
of	O
four	O
characters	O
,	O
attempts	O
to	O
ascend	O
a	O
spire	O
of	O
multiple	O
floors	O
,	O
created	O
through	O
procedural	O
generation	O
,	O
battling	O
through	O
enemies	O
and	O
bosses	O
.	O
</s>
<s>
Slay	B-Application
the	I-Application
Spire	I-Application
has	O
been	O
very	O
well	O
received	O
.	O
</s>
<s>
Slay	B-Application
the	I-Application
Spire	I-Application
is	O
a	O
combination	O
of	O
roguelike-inspired	O
progression	O
and	O
the	O
gameplay	O
of	O
a	O
deck-building	O
card	O
game	O
.	O
</s>
<s>
Slay	B-Application
the	I-Application
Spire	I-Application
features	O
metagaming	O
aspects	O
.	O
</s>
<s>
Slay	B-Application
the	I-Application
Spire	I-Application
is	O
developed	O
by	O
Seattle-based	O
studio	O
Mega	O
Crit	O
,	O
with	O
Anthony	O
Giovannetti	O
and	O
Casey	O
Yano	O
as	O
lead	O
developers	O
.	O
</s>
<s>
The	O
game	O
was	O
also	O
inspired	O
partially	O
by	O
the	O
Netrunner	B-Application
collectible	O
card	O
game	O
,	O
of	O
which	O
Giovannetti	O
was	O
a	O
fan	O
,	O
and	O
for	O
which	O
he	O
maintains	O
a	O
community	O
website	O
.	O
</s>
<s>
The	O
game	O
was	O
built	O
on	O
the	O
libGDX	B-Library
framework	O
.	O
</s>
<s>
To	O
help	O
test	O
and	O
get	O
feedback	O
on	O
the	O
game	O
,	O
Giovannetti	O
turned	O
to	O
expert	O
players	O
in	O
the	O
Netrunner	B-Application
community	O
.	O
</s>
<s>
Originally	O
,	O
enemies	O
did	O
not	O
show	O
their	O
next	O
intended	O
action	O
as	O
is	O
common	O
to	O
most	O
turn-based	O
role-playing	O
video	O
games	O
,	O
but	O
this	O
design	O
did	O
not	O
mesh	O
well	O
with	O
the	O
roguelike	O
nature	O
of	O
permadeath	B-Application
.	O
</s>
<s>
The	O
approach	O
for	O
players	O
to	O
progress	O
through	O
the	O
spires	O
with	O
branching	O
pathways	O
and	O
random	O
events	O
was	O
inspired	O
by	O
FTL	B-Application
:	I-Application
Faster	I-Application
Than	I-Application
Light	I-Application
.	O
</s>
<s>
Giovannetti	O
said	O
that	O
while	O
they	O
could	O
add	O
more	O
cards	O
for	O
a	O
character	O
's	O
card	O
pool	O
,	O
they	O
found	O
having	O
about	O
75	O
different	O
cards	O
available	O
was	O
the	O
right	O
balance	O
to	O
give	O
some	O
potential	O
strategy	O
to	O
the	O
player	O
;	O
having	O
too	O
many	O
card	O
types	O
would	O
make	O
deck	O
construction	O
during	O
runs	O
much	O
more	O
haphazard	O
,	O
an	O
issue	O
that	O
Netrunner	B-Application
had	O
faced	O
.	O
</s>
<s>
On	O
Windows	O
,	O
the	O
game	O
also	O
supports	O
user-created	O
modifications	O
through	O
the	O
Steam	B-Application
Workshop	O
,	O
allowing	O
users	O
to	O
create	O
new	O
playable	O
characters	O
,	O
cards	O
,	O
monsters	O
,	O
and	O
other	O
items	O
.	O
</s>
<s>
Humble	O
Bundle	O
helped	O
to	O
provide	O
publication	O
support	O
for	O
Mega	O
Crit	O
for	O
the	O
console	O
releases	O
:	O
Slay	B-Application
the	I-Application
Spire	I-Application
was	O
released	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
on	O
May	O
21	O
,	O
2019	O
,	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
on	O
June	O
6	O
,	O
2019	O
,	O
and	O
for	O
the	B-Device
Xbox	I-Device
One	I-Device
on	O
August	O
14	O
,	O
2019	O
.	O
</s>
<s>
Mobile	O
versions	O
of	O
the	O
game	O
for	O
iOS	B-Application
and	O
Android	B-Application
were	O
planned	O
for	O
release	O
in	O
2019	O
,	O
but	O
in	O
December	O
2019	O
,	O
Mega	O
Crit	O
pushed	O
their	O
release	O
into	O
early	O
2020	O
.	O
</s>
<s>
The	O
iOS	B-Application
version	O
was	O
released	O
in	O
June	O
2020	O
,	O
and	O
had	O
feature-parity	O
with	O
the	O
computer	O
and	O
console	O
releases	O
.	O
</s>
<s>
The	O
Android	B-Application
version	O
was	O
released	O
on	O
February	O
3	O
,	O
2021	O
.	O
</s>
<s>
During	O
the	O
week	O
ending	O
January	O
21	O
,	O
2018	O
,	O
Slay	B-Application
the	I-Application
Spire	I-Application
was	O
the	O
second	O
highest-sold	O
game	O
on	O
Steam	B-Application
.	O
</s>
<s>
Mega	O
Crit	O
announced	O
that	O
by	O
the	O
end	O
of	O
June	O
,	O
sales	O
of	O
Slay	B-Application
the	I-Application
Spire	I-Application
had	O
exceeded	O
1	O
million	O
,	O
and	O
reached	O
1.5	O
million	O
by	O
March	O
2019	O
.	O
</s>
<s>
Year	O
Award	O
Category	O
Result	O
Ref	O
2019	O
2019	O
Golden	O
Joystick	O
Awards	O
Best	O
Indie	O
Game	O
PC	O
Game	O
of	O
the	O
Year	O
The	O
Game	O
Awards	O
2019	O
Fresh	O
Indie	O
Game	O
(	O
Mega	O
Crit	O
)	O
Steam	B-Application
Awards	O
Most	O
Innovative	O
Gameplay	O
2020	O
23rd	O
Annual	O
D.I.C.E.	O
</s>
<s>
IGN	O
named	O
Slay	B-Application
the	I-Application
Spire	I-Application
as	O
the	O
Best	O
Strategy	O
Game	O
of	O
2019	O
,	O
while	O
PC	O
Gamer	O
gave	O
it	O
the	O
Best	O
Design	O
for	O
2019	O
.	O
</s>
<s>
Mega	O
Crit	O
announced	O
in	O
January	O
2021	O
that	O
they	O
were	O
creating	O
a	O
cooperative	O
board	O
game	O
adaptation	O
of	O
Slay	B-Application
the	I-Application
Spire	I-Application
with	O
Contention	O
Games	O
.	O
</s>
