This is a sample program that is the \emph{Hamurabi} game. The original program was on \emph{BASIC Computer Games: Microcomputer Edition} and was translated into \tbas. This game is considered as the grand ancestor of the strategy, simulation and city-building games; in fact it's so great it has got its own Wikipedia article.

\begin{lstlisting}
10 PRINT SPC(32);"HAMURABI"
20 PRINT SPC(15);"CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY"
30 PRINT:PRINT:PRINT
80 PRINT "TRY YOUR HAND AT GOVERNING ANCIENT SUMERIA"
90 PRINT "FOR A TEN-YEAR TERM OF OFFICE.":PRINT
95 D1=0:P1=0
100 Z=0:P=95:S=2800:H=3000:E=H-S
110 Y=3:A=H/Y:I=5:Q=1
210 D=0
215 PRINT:PRINT:PRINT "HAMURABI:  I BEG TO REPORT TO YOU,":Z=Z+1
217 PRINT "IN YEAR ";Z;", ";D;" PEOPLE STARVED, ";I;" CAME TO THE CITY,"
220 P=P+I
227 IF Q>0 THEN GOTO 230
228 P=INT(P/2)
229 PRINT "A HORRIBLE PLAGUE STRUCK!  HALF THE PEOPLE DIED."
230 PRINT "POPULATION IS NOW ";P
232 PRINT "THE CITY NOW OWNS ";A;" ACRES."
235 PRINT "YOU HARVESTED ";Y;" BUSHELS PER ACRE."
250 PRINT "THE RATS ATE ";E;" BUSHELS."
260 PRINT "YOU NOW HAVE ";S;" BUSHELS IN STORE."
261 PRINT
270 IF Z==11 THEN GOTO 860
310 C=INT(10*RND(1))
311 Y=C+17
312 PRINT "LAND IS TRADING AT ";Y;" BUSHELS PER ACRE."
320 PRINT "HOW MANY ACRES DO YOU WISH TO BUY";
321 INPUT Q
322 IF Q<0 THEN GOTO 850
323 IF Y*Q<=S THEN GOTO 330
324 GOSUB 710
325 GOTO 320
330 IF Q==0 THEN GOTO 340
331 A=A+Q:S=S-Y*Q:C=0
334 GOTO 400
340 PRINT "HOW MANY ACRES DO YOU WISH TO SELL";
341 INPUT Q
342 IF Q<0 THEN GOTO 850
343 IF Q<A THEN GOTO 350
344 GOSUB 720
345 GOTO 340
350 A=A-Q:S=S+Y*Q:C=0
400 PRINT
410 PRINT "HOW MANY BUSHELS DO YOU WISH TO FEED YOUR PEOPLE";
411 INPUT Q
412 IF Q<0 THEN GOTO 850
418 REM *** TRYING TO USE MORE GRAIN THAN IS IN SILOS?
420 IF Q<=S THEN GOTO 430
421 GOSUB 710
422 GOTO 410
430 S=S-Q:C=1:PRINT
440 PRINT "HOW MANY ACRES DO YOU WISH TO PLANT WITH SEED";
441 INPUT D
442 IF D==0 THEN GOTO 511
443 IF D<0 THEN GOTO 850
444 REM *** TRYING TO PLANT MORE ACRES THAN YOU OWN?
445 IF D<=A THEN GOTO 450
446 GOSUB 720
447 GOTO 440
449 REM *** ENOUGH GRAIN FOR SEED?
450 IF INT(D/2)<=S THEN GOTO 455
452 GOSUB 710
453 GOTO 440
454 REM *** ENOUGH PEOPLE TO TEND THE CROPS?
455 IF D<10*P THEN GOTO 510
460 PRINT "BUT YOU HAVE ONLY ";P;" PEOPLE TO TEND THE FIELDS!  NOW THEN,"
470 GOTO 440
510 S=S-INT(D/2)
511 GOSUB 800
512 REM *** A BOUNTIFUL HARVEST!
515 Y=C:H=D*Y:E=0
521 GOSUB 800
522 IF INT(C/2)<>C/2 THEN GOTO 530
523 REM *** RATS ARE RUNNING WILD!!
525 E=INT(S/C)
530 S=S-E+H
531 GOSUB 800
532 REM *** LET'S HAVE SOME BABIES
533 I=INT(C*(20*A+S)/P/100+1)
539 REM *** HOW MANY PEOPLE HAD FULL TUMMIES?
540 C=INT(Q/20)
541 REM *** HORROS, A 15% CHANCE OF PLAGUE
542 Q=INT(10*(2*RND(1)-0.3))
550 IF P<C THEN GOTO 210
551 REM *** STARVE ENOUGH FOR IMPEACHMENT?
552 D=P-C
553 IF D>0.45*P THEN GOTO 560
554 P1=((Z-1)*P1+D*100/P)/Z
555 P=C
556 D1=D1+D
557 GOTO 215
560 PRINT
561 PRINT "YOU STARVED ";D;" PEOPLE IN ONE YEAR!!!"
565 PRINT "DUE TO THIS EXTREME MISMANAGEMENT YOU HAVE NOT ONLY"
566 PRINT "BEEN IMPEACHED AND THROWN OUT OF OFFICE BUT YOU HAVE"
567 PRINT "ALSO BEEN DECLARED NATIONAL FINK!!!!"
568 GOTO 990
710 PRINT "HAMURABI:  THINK AGAIN.  YOU HAVE ONLY"
711 PRINT S;" BUSHELS OF GRAIN.  NOW THEN,"
712 RETURN
720 PRINT "HAMURABI:  THINK AGAIN.  YOU OWN ONLY ";A;" ACRES.  NOW THEN,"
730 RETURN
800 C=INT(RND(1)*5)+1
801 RETURN
850 PRINT
851 PRINT "HAMURABI:  I CANNOT DO WHAT YOU WISH."
855 PRINT "GET YOURSELF ANOTHER STEWARD!!!!!"
857 GOTO 990
860 PRINT "IN YOUR 10-YEAR TERM OF OFFICE, ";P1;" PERCENT OF THE"
862 PRINT "POPULATION STARVED PER YEAR ON THE AVERAGE, I.E. A TOTAL OF"
865 PRINT D1;"PEOPLE DIED!!"
866 L=A/P
870 PRINT "YOU STARTED WITH 10 ACRES PER PERSON AND ENDED WITH"
875 PRINT L;"ACRES PER PERSON."
876 PRINT
880 IF P1>33 THEN GOTO 565
885 IF L<7 THEN GOTO 565
890 IF P1>10 THEN GOTO 940
892 IF L<9 THEN GOTO 940
895 IF P1>3 THEN GOTO 960
896 IF L<10 THEN GOTO 960
900 PRINT "A FANTASTIC PERFORMANCE!!!  CHARLEMANGE, DISRAELI, AND"
905 PRINT "JEFFERSON COMBINED COULD NOT HAVE DONE BETTER!"
906 GOTO 990
940 PRINT "YOUR HEAVY-HANDED PERFORMANCE SMACKS OF NERO AND IVAN IV."
945 PRINT "THE PEOPLE (REMIANING) FIND YOU AN UNPLEASANT RULER, AND,"
950 PRINT "FRANKLY, HATE YOUR GUTS!!"
951 GOTO 990
960 PRINT "YOUR PERFORMANCE COULD HAVE BEEN SOMEWHAT BETTER, BUT"
965 PRINT "REALLY WASN'T TOO BAD AT ALL. ";INT(P*0.8*RND(1));" PEOPLE"
970 PRINT "WOULD DEARLY LIKE TO SEE YOU ASSASSINATED BUT WE ALL HAVE OUR"
975 PRINT "TRIVIAL PROBLEMS."
990 PRINT
991 FOR N=1 TO 10
992 PRINT EMIT(7;)
993 NEXT
995 PRINT "SO LONG FOR NOW."
996 PRINT
999 END
\end{lstlisting}
