These are the current cumulative event chances for each turn after the previous event :
So for example, there is a 80.33% chance to have at least one new event in the next 40 turns after one. If necessary, I can adjust the number to raise or lower the chances, but I don't think there is a need to make it depend on difficulty?
Code:
5. turn 0.98%
6. turn 2.14%
7. turn 3.47%
8. turn 4.98%
9. turn 6.65%
10. turn 8.48%
11. turn 10.44%
12. turn 12.54%
13. turn 14.76%
14. turn 17.09%
15. turn 19.52%
16. turn 22.04%
17. turn 24.63%
18. turn 27.28%
19. turn 29.97%
20. turn 32.71%
21. turn 35.47%
22. turn 38.24%
23. turn 41.02%
24. turn 43.78%
25. turn 46.53%
26. turn 49.24%
27. turn 51.92%
28. turn 54.55%
29. turn 57.12%
30. turn 59.63%
31. turn 62.08%
32. turn 64.45%
33. turn 66.74%
34. turn 68.95%
35. turn 71.07%
36. turn 73.11%
37. turn 75.05%
38. turn 76.90%
39. turn 78.66%
40. turn 80.33%
41. turn 81.90%
42. turn 83.39%
43. turn 84.78%
44. turn 86.09%
45. turn 87.31%
46. turn 88.45%
47. turn 89.51%
48. turn 90.50%
49. turn 91.41%
50. turn 92.24%
51. turn 93.02%
52. turn 93.73%
53. turn 94.38%
54. turn 94.97%
55. turn 95.51%
56. turn 96.00%
57. turn 96.45%
58. turn 96.85%
59. turn 97.21%
60. turn 97.54%
61. turn 97.83%
62. turn 98.09%
63. turn 98.33%
64. turn 98.54%
65. turn 98.72%
66. turn 98.89%
67. turn 99.03%
68. turn 99.16%
69. turn 99.27%
70. turn 99.37%
71. turn 99.46%
72. turn 99.54%
73. turn 99.60%
74. turn 99.66%
75. turn 99.71%
76. turn 99.75%
77. turn 99.79%
78. turn 99.82%
79. turn 99.85%
80. turn 99.87%
81. turn 99.89%
82. turn 99.91%
83. turn 99.92%
84. turn 99.94%
85. turn 99.95%
86. turn 99.96%
87. turn 99.96%
88. turn 99.97%
89. turn 99.98%
90. turn 99.98%
91. turn 99.98%
92. turn 99.99%
93. turn 99.99%
94. turn 99.99%
95. turn 99.99%
96. turn 99.99%
97. turn100.00%
98. turn100.00%
99. turn100.00%
100. turn100.00%
So for example, there is a 80.33% chance to have at least one new event in the next 40 turns after one. If necessary, I can adjust the number to raise or lower the chances, but I don't think there is a need to make it depend on difficulty?