• FizzBuzz
• Calculate Age in Seconds
• Heads/Tails
• Temperature Converter

0. Name Generator
1. Higher/Lower | Heads/Tails
2. Temperature Converter
3. Calculate Age in Seconds
4. Encrypt/Decrypt Algorithm
5. FizzBuzz
6. Rock Paper Scissors (Optional: Rock Paper Scissors Lizard Spock)
7. Hangman
8. Love Calculator
9. Pseudorandom Sentence Generator
10. Password Generator
11. Atomically Correct Time From an Internet Clock
12. Haiku Generator
13. Magic Eight Ball
14. Collatz Conjecture
15. Reverse a String
16. Simple File Explorer
17. Count Words in a String
18. Minesweeper
19. Connect Four
20. BMI Calculator
21. 4Chan Thread Downloader (images)
22. Sudoku Generator/Solver
23. Maze Generator/Solver
24. Decimal/Binary Converter
25. Picross Solver
26. Eulerian Path
27. Fibonnaci Sequence
28. Calculate & Print 100 Factorial
29. Create a cipher encrypt/decrypt tool\*
30. Blackjack
31. Dungeons & Dragons w/ AI
32. Generate ASCII Tree (height based on input)
33. Use Genetic Algorithm on Polygons
34. Benford's Law
35. Currency Converter
36. Static Website Generator
37. Crossword Game
38. Scientific Calculator
39. Perlin Noise Algorithm
40. Image Viewer
41. ASCII Digital Clock
42. Dijkstra's Algorithm
43. Text/Morse Translator (Optional: create sound)
44. Tick-Tac-Toe
45. Snake Game
46. FTP Client
47. Telnet Server
48. IMP Interpreter
49. Tetris
50. Conway's Game of Life
51. Web Crawler
52. Text Editor
53. RSS Feed Creator
54. Evaluate Binomial Coefficients
55. RPN Calculator
56. Mandelbrot Set
57. Sorting Algorithm
58. Convert Markup -> HTML
59. N Queens Problem
60. Credential Validator (ex: Phone #, e-mail address)
61. Linked List
62. Mastermind
63. Random Image Generator
64. Ulam Spiral
65. Klingon Translator
66. Prime number generator using a Sieve
67. Markov Chain
68. Graphical Analog Clock + GUI
69. 2 Seperate Languages Send STrings to One Another (C++ & Java, Lisp & Python, etc.)
70. Triangle Number Calculator
71. Calculate Typing Speed
72. Name Art in ASCII
73. Tower of Hanoi
74. Quine
75. IRC Bot
76. Brainfuck Interpreter
77. Visualization of #57 (Bonus: add sound)
78. Chip-8 Emulator
79. Geekcode Generator (3.12)
80. Define, Translate, & Rotate a Polygon
81. Pong w/ Variable Vectors
82. Battleships w/ AI
83. Simple Paint Program
84. TCP Chat w/ Basic Encryption (XOR)
85. Incremental Economy Simulator (Time of Exploration)
86. Encrypt/Decrypt Text into an Image
87. Pascal's Triangle
88. Sine wave Generator from Pseudorandom Numbers
89. Basic HTML Web Browser
90. Flappy Bird
91. Fast Fourier Transform
92. Method Ringing Simulator
93. Binary Search
94. nintendo Oil Panic
95. Sierpinski Triangle Generator
96. Calculate Dot-&-Cross of 2 Vectors
97. Little Man Computer Simulator
98. Basic Lisp Interpreter
99. Enigma Machine Simulator with settings.conf (Hard mode: decrypt message without known settings)

0. Super Mario clone

Changed: 40, 69, 89 Categories: String manipulation/Interpreters: 09, 10, 12, 15, 17, 52, 60, 65, 72, 74, 76, 78, 98, 99 Math and CS: 03, 04, 05, 11, 14, 20, 23, 25, 26, 27, 28, 29, 32, 33, 34, 38, 39, 42, 48, 54, 55, 56, 57, 59, 61, 63, 64, 66, 67, 69, 70, 77, 80, 86, 87, 88, 91, 92, 93, 95, 96, 97 Networking: 21, 36, 46, 47, 51, 53, 75, 84, 89 Games: 06, 07, 13, 18, 19, 22, 30, 31, 37, 44, 45, 49, 50, 62, 73, 81, 82, 85, 90, 94 Converters: 02, 24, 35, 42, 58 Misc: 16, 40, 41, 68, 71, 83

*Implement at least one tool (except Morse code) in Rumkin Collection: rumkin.com/tools/cipher