diff --git a/Nicks-Game/README.md b/Nicks-Game/README.md
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+# Nick's Game: Guessing Game
+```
+Usage: ruby cli.rb [options]
+    -m, --max MAX                    set the maximum number to guess from
+    -g, --guess_limit GUESS_LIMIT    set the number of guesses allowed
+```
diff --git a/Nicks-Game/cli.rb b/Nicks-Game/cli.rb
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+++ b/Nicks-Game/cli.rb
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+require 'optparse'
+require_relative 'game'
+require_relative 'game_settings'
+
+options = {}
+OptionParser.new do |opts|
+  opts.banner = 'Usage: ruby cli.rb [options]'
+
+  opts.on('-m', '--max MAX', 'set the maximum number to guess from') do |v|
+    options[:max] = v.to_i
+  end
+
+  opts.on('-g', '--guess_limit GUESS_LIMIT', 'set the number of guesses allowed') do |v|
+    options[:guess_limit] = v.to_i
+  end
+end.parse!
+
+game = Game.new options
+
+puts <<-EOF
+Welcome to the guessing game!
+You have #{game.settings.guess_limit || 'unlimited'} tries to guess a number from 1 to #{game.settings.max}.
+EOF
+
+loop do
+  if game.guesses_remaining == 0
+    puts 'You ran out of tries... You lose!'
+    exit
+  else
+    if game.guesses_remaining
+      print "Guess #{game.guesses_used + 1} of #{game.settings.guess_limit}: "
+    else
+      print "Guess #{game.guesses_used + 1}: "
+    end
+
+    result = game.guess gets.to_i
+    case result
+    when 0
+      puts 'You won!'
+      exit
+    when -1 then puts 'Higher...'
+    when 1 then puts 'Lower...'
+    end
+  end
+end
diff --git a/Nicks-Game/game.rb b/Nicks-Game/game.rb
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+++ b/Nicks-Game/game.rb
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+require_relative 'game_settings'
+
+class Game
+  attr_reader :settings, :guesses_used, :guesses_remaining
+  def initialize(options = {})
+    @settings = GameSettings.new(options)
+    @winning_number = rand(1..@settings.max)
+    @guesses_used = 0
+    @guesses_remaining = @settings.guess_limit
+  end
+
+  def guess(number)
+    unless @guesses_remaining.nil?
+      raise RunTimeError, 'No guesses remaining' unless @guesses_remaining > 0
+      @guesses_remaining -= 1
+      @guesses_used += 1
+    end
+
+    number <=> @winning_number
+  end
+end
diff --git a/Nicks-Game/game_settings.rb b/Nicks-Game/game_settings.rb
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+++ b/Nicks-Game/game_settings.rb
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+class GameSettings
+  attr_reader :max, :guess_limit
+
+  def initialize(max: 10, guess_limit: nil)
+    @max = max
+    @guess_limit = guess_limit
+  end
+end