<s>
SpellTower	B-Application
is	O
a	O
puzzle	O
video	O
game	O
by	O
Zach	O
Gage	O
in	O
which	O
the	O
player	O
creates	O
words	O
from	O
a	O
jumble	O
of	O
letter	O
tiles	O
to	O
clear	O
the	O
screen	O
before	O
it	O
refills	O
.	O
</s>
<s>
The	O
impetus	O
for	O
the	O
game	O
—	O
the	O
concept	O
of	O
combining	O
elements	O
from	O
Tetris	B-Device
and	O
Boggle	B-Application
in	O
what	O
was	O
a	O
prototype	O
of	O
the	O
puzzle	O
video	O
game	O
Puzzlejuice	B-Application
—	O
inspired	O
Gage	O
to	O
create	O
SpellTower	B-Application
.	O
</s>
<s>
The	O
game	O
released	O
for	O
iOS	B-Application
in	O
November	O
2011	O
to	O
generally	O
favorable	O
reviews	O
.	O
</s>
<s>
Versions	O
for	O
OS	B-Operating_System
X	I-Operating_System
and	O
Android	B-Application
followed	O
over	O
the	O
next	O
two	O
years	O
.	O
</s>
<s>
In	O
2017	O
SpellTower	B-Application
Minutes	O
was	O
released	O
.	O
</s>
<s>
A	O
new	O
iOS	B-Application
version	O
released	O
in	O
2017	O
swapped	O
out	O
the	O
unnamed	O
dictionary	O
and	O
began	O
using	O
Merriam-Webster	O
'	O
s	O
Third	O
New	O
International	O
Dictionary	O
,	O
Unabridged	O
.	O
</s>
<s>
A	O
2020	O
release	O
,	O
SpellTower+	O
,	O
added	O
new	O
game	O
modes	O
,	O
cleaner	O
visuals	O
,	O
and	O
a	O
jazz	O
soundtrack	O
.	O
</s>
<s>
In	O
the	O
iPad	B-Device
puzzle	O
video	O
game	O
SpellTower	B-Application
,	O
the	O
player	O
attempts	O
to	O
clear	O
the	O
screen	O
of	O
jumbled	O
,	O
lettered	O
tiles	O
by	O
using	O
them	O
to	O
create	O
words	O
.	O
</s>
<s>
A	O
later	O
update	O
added	O
a	O
multiplayer	O
battle	O
mode	O
,	O
where	O
players	O
can	O
face	O
each	O
other	O
across	O
local	O
Bluetooth	B-Protocol
connections	O
.	O
</s>
<s>
When	O
indie	O
developer	O
Zach	O
Gage	O
was	O
first	O
told	O
about	O
a	O
video	O
game	O
that	O
combined	O
Tetris	B-Device
and	O
Boggle	B-Application
,	O
he	O
had	O
a	O
very	O
specific	O
idea	O
of	O
how	O
the	O
game	O
would	O
play	O
.	O
</s>
<s>
But	O
after	O
seeing	O
that	O
the	O
prototype	O
of	O
Puzzlejuice	B-Application
played	O
differently	O
,	O
he	O
created	O
—	O
with	O
the	O
developer	O
's	O
permission	O
—	O
the	O
version	O
he	O
imagined	O
as	O
SpellTower	B-Application
.	O
</s>
<s>
SpellTower	B-Application
released	O
for	O
the	O
iPad	B-Device
tablet	O
computer	O
on	O
November	O
17	O
,	O
2011	O
.	O
</s>
<s>
A	O
month	O
later	O
,	O
Gage	O
added	O
support	O
for	O
iPhone	B-Device
and	O
iPod	B-Device
Touch	I-Device
,	O
and	O
Game	B-Operating_System
Center	I-Operating_System
achievements	O
.	O
</s>
<s>
In	O
2012	O
,	O
Gage	O
added	O
local	O
multiplayer	O
support	O
over	O
Bluetooth	B-Protocol
in	O
a	O
new	O
battle	O
game	O
mode	O
.	O
</s>
<s>
Gage	O
later	O
released	O
versions	O
for	O
OS	B-Operating_System
X	I-Operating_System
(	O
July	O
25	O
,	O
2012	O
)	O
and	O
Android	B-Application
(	O
March	O
7	O
,	O
2013	O
)	O
.	O
</s>
<s>
The	O
Android	B-Application
release	O
is	O
identical	O
apart	O
from	O
the	O
omission	O
of	O
word	O
lookup	O
.	O
</s>
<s>
It	O
also	O
supports	O
local	O
Wi-Fi	O
multiplayer	O
and	O
high	O
score	O
competition	O
via	O
Scoreloop	B-Application
.	O
</s>
<s>
Gage	O
and	O
developer	O
Jack	O
Schlesinger	O
rebuilt	O
SpellTower	B-Application
from	O
scratch	O
to	O
better	O
accommodate	O
changes	O
made	O
since	O
its	O
original	O
release	O
.	O
</s>
<s>
The	O
new	O
version	O
,	O
SpellTower+	O
,	O
has	O
a	O
revised	O
look	O
,	O
a	O
new	O
soundtrack	O
,	O
iCloud	O
backup	O
,	O
and	O
new	O
game	O
modes	O
.	O
</s>
<s>
The	O
game	O
received	O
"	O
generally	O
favorable	O
"	O
reviews	O
,	O
according	O
to	O
video	O
game	O
review	B-Application
score	I-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
In	O
2012	O
,	O
SpellTower	B-Application
was	O
named	O
among	O
IGN	O
underrated	O
iOS	B-Application
word	O
games	O
.	O
</s>
