<s>
Dungeon	B-Language
Crawl	I-Language
Stone	I-Language
Soup	I-Language
(	O
DCSS	O
)	O
is	O
a	O
free	B-License
and	I-License
open	I-License
source	I-License
roguelike	O
computer	O
game	O
and	O
the	O
community-developed	O
successor	O
to	O
the	O
1997	O
roguelike	O
game	O
Linley	O
's	O
Dungeon	B-Application
Crawl	O
,	O
originally	O
programmed	O
by	O
Linley	O
Henzell	O
.	O
</s>
<s>
Dungeon	B-Language
Crawl	I-Language
Stone	I-Language
Soup	I-Language
polled	O
first	O
in	O
a	O
2008	O
poll	O
of	O
371	O
roguelike	O
players	O
,	O
and	O
later	O
polled	O
second	O
in	O
2009	O
(	O
behind	O
DoomRL	B-Language
)	O
and	O
2010	O
(	O
behind	O
ToME	B-Language
4	I-Language
)	O
,	O
and	O
third	O
in	O
2011	O
(	O
behind	O
ToME	B-Language
4	I-Language
and	O
Dungeons	B-Application
of	I-Application
Dredmor	I-Application
)	O
.	O
</s>
<s>
The	O
game	O
is	O
released	O
under	O
the	O
GNU	B-License
GPL-2.0-or-later	I-License
.	O
</s>
<s>
Dungeon	B-Language
Crawl	I-Language
Stone	I-Language
Soup	I-Language
is	O
a	O
roguelike	O
game	O
where	O
the	O
player	O
creates	O
a	O
character	O
and	O
guides	O
it	O
through	O
a	O
dungeon	B-Application
,	O
mostly	O
consisting	O
of	O
persistent	O
levels	O
,	O
full	O
of	O
monsters	O
and	O
items	O
,	O
with	O
the	O
goal	O
of	O
retrieving	O
the	O
"	O
Orb	O
of	O
Zot	O
"	O
(	O
a	O
MacGuffin	B-Algorithm
)	O
located	O
there	O
,	O
and	O
escaping	O
alive	O
.	O
</s>
<s>
To	O
enter	O
the	O
Realm	O
of	O
Zot	O
where	O
the	O
Orb	O
is	O
located	O
,	O
the	O
player	O
must	O
first	O
obtain	O
at	O
least	O
three	O
"	O
runes	O
of	O
Zot	O
"	O
of	O
the	O
15	O
available	O
;	O
these	O
are	O
located	O
at	O
the	O
ends	O
of	O
diverse	O
dungeon	B-Application
branches	O
such	O
as	O
the	O
Spider	O
Nest	O
,	O
Tomb	O
,	O
and	O
Slime	O
Pits	O
.	O
</s>
<s>
The	O
game	O
has	O
an	O
explicit	O
design	O
philosophy	O
intended	O
to	O
provide	O
interesting	O
strategic	O
and	O
tactical	O
choices	O
within	O
a	O
balanced	O
game	O
;	O
to	O
offer	O
replayability	O
based	O
on	O
random	O
dungeon	B-Application
generation	O
;	O
to	O
make	O
the	O
game	O
accessible	O
and	O
enjoyable	O
without	O
deep	O
knowledge	O
of	O
its	O
internal	O
mechanics	O
;	O
and	O
to	O
present	O
a	O
friendly	O
user	B-Application
interface	I-Application
that	O
can	O
optionally	O
automate	O
several	O
tasks	O
like	O
exploration	O
and	O
searching	O
for	O
previously	O
seen	O
items	O
.	O
</s>
<s>
Most	O
levels	O
are	O
randomly	O
generated	O
to	O
maximize	O
variety	O
,	O
while	O
the	O
levels	O
containing	O
the	O
objective	O
items	O
are	O
randomly	O
chosen	O
between	O
several	O
manually-designed	O
layouts	O
,	O
which	O
usually	O
contain	O
random	O
elements	O
,	O
and	O
which	O
are	O
authored	O
in	O
a	O
Crawl-specific	O
language	O
incorporating	O
Lua	B-Language
scripting	I-Language
.	O
</s>
<s>
Some	O
gods	O
 '	O
enhancements	O
are	O
tailored	O
to	O
specific	O
play	O
styles	O
,	O
such	O
as	O
Okawaru	O
's	O
gifts	O
of	O
weapons	O
and	O
combat	O
boosts	O
supporting	O
fighter	O
types	O
;	O
and	O
Sif	O
Muna	O
's	O
gifts	O
of	O
spell	B-Application
books	O
and	O
increases	O
to	O
MP	O
regeneration	O
,	O
which	O
are	O
more	O
beneficial	O
to	O
sorcerer	O
types	O
.	O
</s>
<s>
Linley	O
's	O
Dungeon	B-Application
Crawl	O
(	O
or	O
just	O
Dungeon	B-Application
Crawl	O
or	O
Crawl	O
)	O
was	O
a	O
roguelike	O
computer	O
game	O
originally	O
programmed	O
by	O
Linley	O
Henzell	O
in	O
1995	B-Application
,	O
and	O
first	O
released	O
to	O
the	O
general	O
public	O
on	O
October	O
2	O
,	O
1997	O
.	O
</s>
<s>
The	O
game	O
had	O
a	O
quirky	O
license	O
based	O
on	O
Bison	B-Application
's	O
license	O
and	O
the	O
NetHack	B-Application
License	O
;	O
Stone	O
Soup	O
has	O
contacted	O
every	O
past	O
contributor	O
and	O
relicensed	O
to	O
GPL-2.0-or-later	B-License
.	O
</s>
<s>
Crawl	O
starts	O
with	O
the	O
player	O
's	O
choice	O
of	O
one	O
of	O
over	O
twenty	O
races	O
:	O
several	O
different	O
types	O
of	O
elves	B-Application
,	O
dwarves	O
,	O
humans	O
,	O
ogres	B-Application
,	O
tengu	O
,	O
centaurs	O
,	O
merfolk	O
,	O
and	O
other	O
fantasy	O
beings	O
.	O
</s>
<s>
The	O
Crawl	O
skill	O
system	O
covers	O
many	O
abilities	O
,	O
including	O
the	O
ability	O
to	O
move	O
freely	O
in	O
armor	O
or	O
silently	O
,	O
mount	O
effective	O
attacks	O
with	O
different	O
categories	O
of	O
weapons	O
(	O
polearms	O
,	O
long	O
or	O
short	O
blades	O
,	O
maces	O
,	O
axes	O
,	O
and	O
staves	B-Application
)	O
,	O
master	O
spells	B-Application
from	O
different	O
magical	O
colleges	O
(	O
the	O
elements	O
,	O
necromancy	O
,	O
conjuration	O
,	O
enchantments	O
,	O
summoning	O
,	O
etc	O
.	O
</s>
<s>
Trog	O
,	O
the	O
berserker	O
god	O
,	O
expects	O
abstinence	O
from	O
casting	O
spells	B-Application
and	O
offers	O
aid	O
in	O
battle	O
,	O
whereas	O
Sif	O
Muna	O
expects	O
frequent	O
spellcraft	O
in	O
exchange	O
for	O
magical	O
assistance	O
and	O
gifts	O
of	O
spellbooks	O
.	O
</s>
<s>
The	O
goal	O
of	O
Crawl	O
is	O
to	O
recover	O
the	O
"	O
Orb	O
of	O
Zot	O
"	O
hidden	O
deep	O
within	O
a	O
dungeon	B-Application
complex	O
.	O
</s>
<s>
To	O
achieve	O
this	O
objective	O
,	O
characters	O
must	O
visit	O
various	O
dungeon	B-Application
branches	O
,	O
such	O
as	O
the	O
Orcish	O
Mines	O
or	O
The	O
Lair	O
of	O
Beasts	O
,	O
which	O
often	O
branch	O
further	O
in	O
to	O
additional	O
areas	O
,	O
like	O
the	O
Elven	O
Halls	O
or	O
The	O
Swamp	O
,	O
and	O
obtain	O
at	O
least	O
three	O
"	O
Runes	O
of	O
Zot	O
"	O
with	O
which	O
to	O
gain	O
access	O
to	O
the	O
Orb	O
.	O
</s>
<s>
Dungeon	B-Application
maps	O
in	O
Crawl	O
persist	O
,	O
as	O
in	O
NetHack	B-Application
.	O
</s>
<s>
The	O
last	O
official	O
versions	O
of	O
Linley	O
's	O
Dungeon	B-Application
Crawl	O
were	O
4.0.0	O
beta	O
26	O
,	O
from	O
March	O
24	O
,	O
2003	O
,	O
and	O
a	O
later	O
alpha	O
release	O
,	O
version	O
4.1.0	O
,	O
dating	O
from	O
July	O
2005	O
.	O
</s>
<s>
Version	O
400b26e070t	O
,	O
a	O
popular	O
last	O
community	O
release	O
,	O
includes	O
the	O
2003	O
–	O
2004	O
Patches	O
(	O
Darshan	O
Shaligram	O
)	O
and	O
updates	O
the	O
game	O
to	O
the	O
standard	O
tile	B-Application
version	O
(	O
M	O
.	O
Itakura	O
,	O
Denzi	O
,	O
Alex	O
Korol	O
,	O
Nullpodoh	O
)	O
.	O
</s>
<s>
The	O
game	O
has	O
been	O
ported	O
to	O
the	O
Nintendo	B-Device
DS	I-Device
as	O
DSCrawl	O
.	O
</s>
<s>
Dungeon	B-Language
Crawl	I-Language
Stone	I-Language
Soup	I-Language
was	O
begun	O
in	O
2006	O
by	O
Darshan	O
"	O
greensnark	O
"	O
Shaligram	O
and	O
Erik	O
Piper	O
as	O
an	O
attempt	O
to	O
restart	O
Crawl	O
development	O
,	O
which	O
had	O
progressed	O
slowly	O
in	O
the	O
years	O
since	O
Linley	O
Henzell	O
,	O
creator	O
of	O
the	O
original	O
Linley	O
's	O
Dungeon	B-Application
Crawl	O
,	O
had	O
retired	O
from	O
developing	O
the	O
game	O
.	O
</s>
<s>
Several	O
patches	O
had	O
been	O
made	O
to	O
the	O
game	O
,	O
particularly	O
one	O
by	O
Shaligram	O
known	O
as	O
the	O
"	O
Travel	O
patch	O
"	O
,	O
which	O
borrowed	O
the	O
implementation	O
of	O
Dijkstra	B-Algorithm
's	I-Algorithm
algorithm	I-Algorithm
from	O
NetHack	B-Application
to	O
provide	O
an	O
auto-exploration	O
ability	O
in	O
game	O
.	O
</s>
<s>
These	O
patches	O
were	O
compiled	O
into	O
the	O
Stone	O
Soup	O
project	O
,	O
which	O
eventually	O
released	O
publicly	O
on	O
SourceForge	B-Application
.	O
</s>
<s>
Stone	O
Soup	O
has	O
since	O
then	O
developed	O
an	O
unprecedented	O
variety	O
of	O
extensions	O
which	O
fit	O
into	O
this	O
general	O
vein	O
of	O
"	O
play	O
aid	O
"	O
,	O
such	O
as	O
allowing	O
searching	O
through	O
every	O
item	O
ever	O
discovered	O
by	O
regular	B-Language
expression	I-Language
.	O
</s>
<s>
Additionally	O
,	O
Stone	O
Soup	O
has	O
made	O
a	O
number	O
of	O
user	B-Application
interface	I-Application
improvements	O
,	O
such	O
as	O
mouse	O
interaction	O
and	O
an	O
optional	O
graphical	B-Application
user	I-Application
interface	I-Application
.	O
</s>
<s>
The	O
development	O
team	O
has	O
also	O
expressed	O
a	O
desire	O
to	O
maintain	O
the	O
current	O
total	O
length	O
of	O
the	O
game	O
,	O
and	O
so	O
as	O
new	O
areas	O
are	O
added	O
to	O
the	O
dungeon	B-Application
,	O
old	O
ones	O
have	O
been	O
shortened	O
or	O
even	O
removed	O
to	O
compensate	O
.	O
</s>
<s>
One	O
notable	O
addition	O
of	O
the	O
Dungeon	B-Language
Crawl	I-Language
Stone	I-Language
Soup	I-Language
branch	O
is	O
the	O
ability	O
to	O
play	O
(	O
locally	O
or	O
in	O
a	O
web	B-Application
browser	I-Application
)	O
using	O
a	O
graphical	B-Application
tile	B-Application
version	O
of	O
the	O
game	O
.	O
</s>
<s>
Players	O
unfamiliar	O
with	O
the	O
genre	O
may	O
find	O
the	O
tile	B-Application
version	O
more	O
accessible	O
.	O
</s>
<s>
There	O
are	O
two	O
Android	B-Application
ports	O
of	O
the	O
game	O
available	O
.	O
</s>
<s>
An	O
unofficial	O
port	O
of	O
the	O
console	O
version	O
was	O
developed	O
and	O
released	O
on	O
Google	B-Application
Play	I-Application
.	O
</s>
<s>
There	O
is	O
also	O
a	O
port	O
of	O
the	O
tile	B-Application
version	O
that	O
is	O
under	O
development	O
.	O
</s>
<s>
Several	O
public	O
servers	O
support	O
online	O
play	O
through	O
an	O
SSH	B-Protocol
client	O
and	O
some	O
of	O
these	O
also	O
allow	O
graphical	B-Application
play	O
in	O
web	B-Application
browser	I-Application
(	O
referred	O
to	O
as	O
webtiles	O
)	O
.	O
</s>
