Build a Simple Roguelike

C, 257 253 222 220

Uses system("cls") instead of curses (use system("clear") for Linux systems) and a clever algorithm to fit the map into an 8-digit number. Non-extended keys end the program, e.g. escape.

EDIT: Now also shows your hero below the map by using a<230 instead of a<132:

    ##
   ####
 ###  ###
 # #  # #
## #  # ##
   ####
  #    #
 ##    ##

Code:

a,p=14,w=11,X,Y;m(I){X=I%w-1,Y=I/w;return 70313263>>(Y>5?w-Y:Y)*5+(X>4?9-X:X)&1;}main(){do{system("cls");a=a&4?1:a&2?-1:a&8?-w:w;p+=!m(p+a)*a;for(a=0;++a<230;)putch(a%w?a-p?m(a)*35:64:10);}while(a=getch()>>7?getch():0);}

Ruby 1.9 + Curses (248)

require'curses';include Curses;noecho;curs_set 0
b=0xf3e499e601c0d0240b0380679927cf.to_s(2).tr'01',' #'
s=init_screen<<b.scan(/.{10}/)*$/;s.keypad 1
p=22;d=->t=?@{setpos p/10,p%10;addch t;6};d[]
loop{p=b[v=p+[10,-10,-1,1][getch%d[32]]]<?#?v:p;d[]}

Python 332 319 317

from curses import*
M=0xf3e499e601c0d0240b0380679927cf;S=initscr();S.keypad(1);x,y=2,2;A=S.addstr;[A(a,b,[' ','#'][M>>(10*a+b)&1])for a in range(12)for b in range(10)]
while 1:A(y,x,'@');k=S.getch();A(y,x,' ');X=[[x,x-1],[x+1,1]][k==261][k==260];Y=[[y,y-1],[y+1,y+1]][k==258][k==259];x,y=[(X,Y),(x,y)][M>>(10*Y+X)&1]

The python curses library is only officially supported on linux. There are unofficial ones available for windows, but I can't guarantee that this will work with it.

To save a few characters I hard coded the keycodes for up, down, left, and right. This may cause problems for some people. If this doesn't work for anyone I can post a version that should.

Use ctrl+c to exit. You will probably have to reset your terminal after exiting, but the challenge specifically said the exit didn't have to be graceful.