<s>
Dungeon	B-Application
Keeper	I-Application
is	O
a	O
series	O
of	O
strategy	B-Application
video	I-Application
games	I-Application
released	O
by	O
Electronic	O
Arts	O
.	O
</s>
<s>
Two	O
games	O
were	O
developed	O
by	O
Bullfrog	O
Productions	O
for	O
the	O
PC	B-Device
in	O
the	O
late	O
1990s	O
,	O
and	O
a	O
third	O
was	O
in	O
development	O
but	O
was	O
cancelled	O
before	O
release	O
.	O
</s>
<s>
A	O
free-to-play	O
game	O
for	O
Android	B-Application
and	O
iOS	B-Application
was	O
developed	O
by	O
Mythic	O
Entertainment	O
and	O
released	O
in	O
2013	O
.	O
</s>
<s>
Dungeon	B-Application
Keeper	I-Application
was	O
released	O
in	O
June	O
1997	O
.	O
</s>
<s>
It	O
used	O
a	O
modified	O
version	O
of	O
the	O
Magic	B-Application
Carpet	I-Application
game	O
engine	O
.	O
</s>
<s>
Dungeon	B-Application
Keeper	I-Application
2	O
was	O
released	O
in	O
June	O
1999	O
.	O
</s>
<s>
It	O
used	O
a	O
new	O
game	O
engine	O
that	O
natively	O
supported	O
hardware	B-General_Concept
acceleration	I-General_Concept
.	O
</s>
<s>
Its	O
predecessor	O
supported	O
Direct3D	B-Application
but	O
only	O
with	O
an	O
alternative	O
executable	O
.	O
</s>
<s>
In	O
August	O
2013	O
,	O
EA	O
and	O
Mythic	O
Entertainment	O
announced	O
that	O
they	O
were	O
creating	O
a	O
"	O
twisted	O
take	O
"	O
on	O
Dungeon	B-Application
Keeper	I-Application
for	O
both	O
Android	B-Application
and	O
iOS	B-Application
mobile	O
devices	O
with	O
a	O
release	O
date	O
set	O
for	O
winter	O
of	O
the	O
same	O
year	O
.	O
</s>
<s>
On	O
10	O
October	O
2013	O
,	O
Dungeon	B-Application
Keeper	I-Application
Mobile	I-Application
soft-launched	O
on	O
Google	B-Application
Play	I-Application
and	O
iOS	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
The	O
game	O
has	O
faced	O
criticism	O
due	O
to	O
its	O
use	O
of	O
microtransactions	O
and	O
wait	O
times	O
,	O
with	O
Peter	O
Molyneux	O
,	O
the	O
original	O
creator	O
,	O
even	O
saying	O
that	O
it	O
ruined	O
the	O
fun	O
aspects	O
of	O
Dungeon	B-Application
Keeper	I-Application
.	O
</s>
<s>
Dungeon	B-Application
Keeper	I-Application
3	O
was	O
in	O
development	O
in	O
2000	O
,	O
but	O
was	O
cancelled	O
later	O
that	O
year	O
.	O
</s>
<s>
Some	O
Dungeon	B-Application
Keeper	I-Application
2	O
CDs	O
contained	O
a	O
trailer	O
showing	O
some	O
features	O
of	O
Dungeon	B-Application
Keeper	I-Application
3	O
;	O
among	O
them	O
were	O
above-land	O
battles	O
.	O
</s>
<s>
One	O
member	O
of	O
Bullfrog	O
Productions	O
stated	O
on	O
his	O
personal	O
website	O
that	O
Dungeon	B-Application
Keeper	I-Application
3	O
was	O
going	O
to	O
be	O
named	O
War	B-Application
for	I-Application
the	I-Application
Overworld	I-Application
.	O
</s>
<s>
The	O
project	O
was	O
discontinued	O
because	O
,	O
according	O
to	O
developer	O
Ernest	O
W	O
.	O
Adams	O
,	O
Bullfrog	O
had	O
decided	O
not	O
to	O
make	O
any	O
other	O
real-time	O
strategy	B-Application
games	I-Application
.	O
</s>
<s>
On	O
1	O
December	O
2008	O
,	O
NetDragonWebsoft	O
Inc.	O
,	O
a	O
Chinese	O
online	O
game	O
developer	O
,	O
announced	O
it	O
had	O
partnered	O
with	O
Electronic	O
Arts	O
to	O
develop	O
a	O
massively	B-Protocol
multiplayer	I-Protocol
online	I-Protocol
role-playing	I-Protocol
game	I-Protocol
based	O
on	O
the	O
Dungeon	B-Application
Keeper	I-Application
license	O
.	O
</s>
