Do you want to play a superhero character but are having a hard time coming up with an origin story/background? Use the following random tables to help jump-start your imagination. (This material is system free, and it's presented under the Open Game License and may be reproduced in accordance with it.)
How did the Hero Get His or Her Powers?
Roll 1d12. Consult the Table.
1. Rocketed to Earth from an Alien Planet
2. Learned Mysticism from Tibetan Monks
3. Learned to Unlock the Full Potential of Your Mind and Body from Secret Cult of Mystics
4. Scientific Accident
5. Industrial Accident
6. Purposeful Scientitic Experimentation
7. Inventions of Your Own Design
8. Inventions Stolen from Evil-doers or Alien Beings
9. Blessed or Cursed by a god.
10. Born into a lost/hidden civilization that you left behind.
11. You're a Ghost or Some Other Kind of Supernatural Being
12. You're Just a Person Who Has a Unique Set of Skills, a Passion for Justice, and a Cool Costume.
What is the Hero's Sex?
Roll 1d12. Consult the table
8-10. Alien (roll an additional 1d6 to determine superficial sexual characterisitcs; 1-2 Male, 3-4 Female, 5-6 Shapeshifter with no specific sex.)
11-12. Android (use the tables in NUELOW's Dynamic Man for additional details
What is the Hero's Gender?
(You can also use this table to determine sexual orientation.)
Roll 1d12. Consult the table.
What is the Hero's Race?
You can use the table in this post ("d20 System Racial Templates") to determine that. You can ignore the game mechanics if you are using a different game system than the one it was intended for, or if they don't fit with the character generation system used in your game.