<s>
Heavy	B-Application
Bullets	I-Application
is	O
a	O
roguelike	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
Brazil-based	O
indie	O
developer	O
Terri	B-Application
Vellmann	I-Application
and	O
published	O
by	O
Devolver	O
Digital	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
OS	B-Operating_System
X	I-Operating_System
,	O
and	O
Linux	B-Application
on	O
18	O
September	O
2014	O
.	O
</s>
<s>
Heavy	B-Application
Bullets	I-Application
is	O
a	O
first-person	O
shooter	O
video	O
game	O
.	O
</s>
<s>
The	O
game	O
uses	O
the	O
Unity	B-Application
engine	I-Application
.	O
</s>
<s>
An	O
early	O
access	O
build	O
of	O
the	O
game	O
launched	O
on	O
Steam	B-Application
on	O
15	O
May	O
2014	O
.	O
</s>
