<s>
The	O
game	O
was	O
later	O
released	O
by	O
Sweeney	O
as	O
Freeware	B-License
and	O
the	O
engine	O
's	O
source	O
code	O
was	O
opened	O
to	O
the	O
public	O
.	O
</s>
<s>
The	O
game	O
is	O
now	O
maintained	O
and	O
updated	O
by	O
the	O
game	O
's	O
community	O
as	O
Free	B-License
and	I-License
open-source	I-License
software	I-License
.	O
</s>
<s>
Project	O
:	O
Starfighter	O
was	O
originally	O
developed	O
for	O
the	O
Amiga	B-Device
,	O
and	O
the	O
source	O
code	O
was	O
available	O
as	O
freeware	B-License
(	O
allowing	O
only	O
non-commercial	O
usage	O
)	O
in	O
the	O
early	O
2000s	O
.	O
</s>
<s>
On	O
7	O
March	O
2002	O
the	O
game	O
was	O
released	O
for	O
Linux	B-Application
too	O
,	O
and	O
the	O
source	O
code	O
was	O
released	O
under	O
non-commercial	O
terms	O
.	O
</s>
<s>
On	O
18	O
April	O
2004	O
the	O
game	O
become	O
available	O
for	O
Debian	O
and	O
the	O
GPL	B-License
license	I-License
was	O
linked	O
for	O
the	O
complete	O
Parallel	O
Realities	O
website	O
.	O
</s>
<s>
Project	O
:	O
Starfighter	O
has	O
been	O
ported	O
later	O
to	O
many	O
platforms	O
,	O
including	O
Linux	B-Application
,	O
FreeBSD	B-Operating_System
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Microsoft	B-Application
Windows	I-Application
,	O
Sony	B-Operating_System
PSP	I-Operating_System
,	O
Amiga	B-Application
OS4	I-Application
,	O
QNX	B-Operating_System
and	O
Xbox	B-Application
.	O
</s>
<s>
A	O
continuation	B-Application
of	O
Project	B-Application
Starfighter	I-Application
exists	O
,	O
where	O
the	O
original	O
Freeware	B-License
game	O
assets	O
were	O
replaced	O
by	O
various	O
Open	O
content	O
artwork	O
(	O
mostly	O
CC	O
BY	O
and	O
CC	O
BY-SA	O
licensed	O
)	O
in	O
2012	O
and	O
2015	O
.	O
</s>
<s>
The	O
project	O
moved	O
in	O
2015	O
from	O
SourceForge	B-Application
to	O
GNU	B-Protocol
Savannah	I-Protocol
,	O
and	O
then	O
moved	O
to	O
GitHub	O
with	O
the	O
release	O
of	O
version	O
2.0	O
in	O
2019	O
.	O
</s>
<s>
The	O
project	O
continues	O
to	O
be	O
updated	O
under	O
the	O
GNU	B-License
GPL	I-License
version	O
3	O
or	O
later	O
.	O
</s>
<s>
In	O
June	O
2014	O
,	O
Sweeney	O
published	O
a	O
novelization	O
of	O
the	O
story	O
of	O
Project	O
:	O
Starfighter	O
,	O
making	O
it	O
the	O
first	O
time	O
a	O
commercial	O
novel	O
has	O
been	O
based	O
on	O
a	O
GPL	B-License
video	O
game	O
.	O
</s>
