<s>
Tactic	B-Application
is	O
a	O
video	O
game	O
,	O
originally	O
released	O
for	O
the	O
Acorn	B-Device
Archimedes	I-Device
in	O
1990	O
by	O
Eterna	O
.	O
</s>
<s>
Tactic	B-Application
is	O
a	O
falling	O
block	O
puzzle	O
as	O
popularised	O
by	O
the	O
game	O
Tetris	B-Device
.	O
</s>
<s>
The	O
iOS	B-Application
version	O
adds	O
bombs	O
.	O
</s>
<s>
The	O
game	O
was	O
first	O
released	O
in	O
1990	O
for	O
the	O
Acorn	B-Device
Archimedes	I-Device
by	O
Eterna	O
.	O
</s>
<s>
It	O
was	O
then	O
converted	O
to	O
BBC	B-Device
Micro	I-Device
and	O
Acorn	B-Device
Electron	I-Device
by	O
Superior	B-Device
Software	I-Device
.	O
</s>
<s>
The	O
BBC	B-Device
Micro	I-Device
version	O
was	O
released	O
on	O
the	O
1993	O
compilation	O
Play	O
It	O
Again	O
Sam	O
17	O
but	O
as	O
that	O
was	O
the	O
first	O
of	O
the	O
series	O
not	O
to	O
be	O
released	O
on	O
the	O
Acorn	B-Device
Electron	I-Device
,	O
the	O
Electron	O
version	O
was	O
never	O
released	O
.	O
</s>
<s>
The	O
game	O
was	O
then	O
released	O
by	O
Nessprod	O
for	O
iPhone	B-Device
and	O
iPod	B-Device
Touch	I-Device
in	O
2009	O
.	O
</s>
