random number guesser

random-v2.rb

GUESS_RANGE = 100

guessNumber = rand(GUESS_RANGE)
puts "Guess the number! (Hint: between 0 and #{GUESS_RANGE})"
guessCount = 0

while (userGuess = gets.to_i) != guessNumber # keep getting more numbers

  # give out hints to the user
  puts 'Too high' if userGuess > guessNumber
  puts 'Too low'  if userGuess < guessNumber
  guessCount = guessCount + 1
end
puts "you got it in #{guessCount} guesses! The number is: #{guessNumber}"

You should initialize the guessCount to 1, and use an if/elseif since they are mutually exclusive anyway. Lastly, the Ruby convention is to use lowercase with underscores for variable names. Nice work!