10 PRINT "Welcome to the Adventure Game!"
20 PRINT "You are in a dark room."
30 PRINT "There is a door to your north."
40 PRINT "What do you do?"
50 PRINT "1. Go north"
60 PRINT "2. Look around"
70 PRINT "3. Quit"
80 INPUT "Choose an action: ", A
90 IF A = 1 THEN GOTO 200
100 IF A = 2 THEN GOSUB 3000
110 IF A = 3 THEN GOTO 400
120 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN GOTO 130
125 GOTO 80  REM Ensure return to main loop after valid actions
130 PRINT "Invalid choice."
140 GOTO 80

200 REM North Room
210 PRINT "You are in a bright room with sunlight"
215 PRINT "streaming in."
220 PRINT "There is a door to your south."
230 PRINT "There is a door to your east."
240 PRINT "There is a painting on the wall."
250 PRINT "What do you do?"
260 PRINT "1. Go south"
270 PRINT "2. Go east"
280 PRINT "3. Look at the painting"
290 PRINT "4. Look around"
300 PRINT "5. Quit"
310 INPUT "Choose an action: ", A
320 IF A = 1 THEN GOTO 20
330 IF A = 2 THEN GOTO 500
340 IF A = 3 THEN GOSUB 1340
350 IF A = 4 THEN GOSUB 3300
360 IF A = 5 THEN GOTO 400
370 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN IF A <> 4 THEN IF A <> 5 THEN GOTO 380
375 GOTO 310  REM Ensure return to main loop after valid actions
380 PRINT "Invalid choice."
390 GOTO 310

400 REM Quit
410 PRINT "Thanks for playing!"
420 END

500 REM East Room
510 PRINT "You are in a treasure room filled with"
515 PRINT "golden artifacts!"
520 PRINT "There is a door to your west."
530 PRINT "There is a door to your north."
540 PRINT "There is a door to your east."
550 PRINT "What do you do?"
560 PRINT "1. Go west"
570 PRINT "2. Go north"
580 PRINT "3. Go east"
590 PRINT "4. Look around"
600 PRINT "5. Quit"
610 INPUT "Choose an action: ", A
620 IF A = 1 THEN GOTO 200
630 IF A = 2 THEN GOTO 700
640 IF A = 3 THEN GOTO 1100
650 IF A = 4 THEN GOSUB 5100
660 IF A = 5 THEN GOTO 400
670 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN IF A <> 4 THEN IF A <> 5 THEN GOTO 680
675 GOTO 610  REM Ensure return to main loop after valid actions
680 PRINT "Invalid choice."
690 GOTO 610

700 REM Library Room
710 PRINT "You enter a library with walls lined"
715 PRINT "with ancient books."
720 PRINT "There is a door to the north."
730 PRINT "There is a door to your south."
740 PRINT "What do you do?"
750 PRINT "1. Go north"
760 PRINT "2. Go south"
770 PRINT "3. Look around"
780 PRINT "4. Quit"
790 INPUT "Choose an action: ", A
800 IF A = 1 THEN GOTO 900
810 IF A = 2 THEN GOTO 500
820 IF A = 3 THEN GOSUB 9000
830 IF A = 4 THEN GOTO 400
840 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN IF A <> 4 THEN GOTO 850
845 GOTO 790  REM Ensure return to main loop after valid actions
850 PRINT "Invalid choice."
860 GOTO 790

900 REM Garden Room
910 PRINT "You find yourself in a garden with"
915 PRINT "blooming flowers."
920 PRINT "There is a door to the south."
930 PRINT "What do you do?"
940 PRINT "1. Go south"
950 PRINT "2. Look around"
960 PRINT "3. Sit and rest"
970 PRINT "4. Quit"
980 INPUT "Choose an action: ", A
990 IF A = 1 THEN GOTO 700
1000 IF A = 2 THEN GOSUB 1310
1010 IF A = 3 THEN GOSUB 1400
1020 IF A = 4 THEN GOTO 400
1030 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN IF A <> 4 THEN GOTO 1040
1035 GOTO 980  REM Ensure return to main loop after valid actions
1040 PRINT "Invalid choice."
1050 GOTO 980

1100 REM Cave Room
1110 PRINT "You enter a mysterious cave, echoing"
1115 PRINT "with unknown sounds."
1120 PRINT "There is a door to the west."
1130 PRINT "What do you do?"
1140 PRINT "1. Go west"
1150 PRINT "2. Look around"
1160 PRINT "3. Light a torch"
1170 PRINT "4. Quit"
1180 INPUT "Choose an action: ", A
1190 IF A = 1 THEN GOTO 500
1200 IF A = 2 THEN GOSUB 1370
1210 IF A = 3 THEN GOSUB 1450
1220 IF A = 4 THEN GOTO 400
1230 IF A <> 1 THEN IF A <> 2 THEN IF A <> 3 THEN IF A <> 4 THEN GOTO 1240
1235 GOTO 1180  REM Ensure return to main loop after valid actions
1240 PRINT "Invalid choice."
1250 GOTO 1180

1300 REM Subroutines for additional rooms
1310 REM Look around the garden
1320 PRINT "You spot a hidden path behind the"
1325 PRINT "bushes."
1330 RETURN

1340 REM Look at the painting
1350 PRINT "The painting depicts a serene"
1355 PRINT "landscape."
1360 RETURN

1370 REM Look around the cave
1380 PRINT "You see glittering crystals on the"
1385 PRINT "cave walls."
1390 RETURN

1400 REM Sit and rest
1410 PRINT "You sit and enjoy the peace."
1420 RETURN

1450 REM Light a torch
1460 PRINT "You light a torch and see hidden"
1465 PRINT "passages."
1470 RETURN

3000 REM Look around Dark Room
3010 PRINT "You see a faint light coming from the"
3015 PRINT "north."
3020 RETURN

3300 REM Look around North Room
3310 PRINT "You notice a bookshelf filled with old"
3315 PRINT "books."
3320 RETURN

5100 REM Look around East Room
5110 PRINT "You see a large chest filled with gold"
5115 PRINT "coins."
5120 RETURN

9000 REM Look around Library
9010 PRINT "You find a dusty old tome with strange"
9015 PRINT "symbols."
9020 RETURN