Well 1st, this is supposed to be in the ask section. Second, you have no quotaion marks. Third, your if statements are set up wrong.

td=input("choose truth or dare- ")
if td=="truth"
  color=input("what is your favorite color)
  print("Your favorite color is",color)
else:
  print("Steal your sisters things, otherwise your friends")

Please revisit python or learn it if you haven't already

Unfortunately, making a game is a bit more complicated than 3 lines of code. You can check out this truth or dare game I made right here: https://replit.com/@JackNorwood/Truth-or-Dare?c=175740
You may dissect to your own comfort.