Almost 10 years after Abadoleon opened this thread, I started playing Esprit again. I got stuck at some point and found this forum when googling for a solution. I managed to finish the game. Here is an updated list with all (?) level codes, including the three letter code for level 71. Hope it will help someone in the future - cheers to 2025
03: 75059238
13: 55178528
17: 45441262
21: 56729379
24: 79001328
26: 10253007
28: 39939620
33: 30716879
36: 16941387
39: 03682957
43: 48295738
46: 78715501
52: 00588782
53: 20363761
54: 52767297
57: 56482689
58: 43845949
59: 54133558
61: 09371492
62: 75375375
66: 12339107
69: 90721866
72: 15857993
77: 21027959
78: 29927353
79: 86474251
83: 94653138
85: 47940757
89: 87492324
92: 18455677
97: 22515114
100: 89802573
Hints for some weird levels:
52: This level can only be solved on Sundays.
71: The required code is "ROM". Type these letters to finish the level.
85: With an empty inventory, touch the stones to the right.