here is a prog for the ti 81 i wrote. feel free to post it. nb soft NB Soft Presetns, Nick Games! Programmed by:Nick Brown. For the TI 81 calc. You need prgm spaces 1,3,4 open for Nick Games. There are three progs, here is the main prog. prgm4:nick clrhome disp "***************" disp "* nb software *" disp "***************" pause clrhome disp "***************" disp "* nick games !! *" disp "***************" pause clrhome disp "* main menu *" disp "1)caves " disp "2)guess " input a if 1=a prgm1 if 2=a prgm3 end here is prog 2 prgm1:caves 1->xmin 6->xmax 0-xscl disp "caves by nick brown" disp "in front of you are six caves. five contain dragons, one doesnt. which cave do you choose to enter(1,2,3,4,5,6)?" input a int(rand*6)->x if a=x goto 1 disp "you enter the cave. gulp! a dragon gobbles you up!" end lbl 1 disp "you enter the cave. there are no dragons in sight, you won!" end here is the final prog prgm3:guessing 1->xmin 10->xmax 1->xscl lbl 1 int (rand*10)->x disp "i am thinking of a number between 1 and 10, can you guess it?" input a if a>x goto 2 if ax goto 2 if a=->. NB Soft is a division of Oldstyleware.