Super simple Rock Paper Scissors game in Python.

rps.py

import random

choices = ["rock", "paper", "scissors"]
beats = {"rock": "scissors", "paper": "rock", "scissors": "paper"}
player = False

while not player:
    player = input("rock, paper, or scissors? ").lower()
    computer = random.choice(choices)

    if beats[player] == computer: print(f"You won! {player} beats {computer}")
    elif player == computer: print("It's a tie! Try again.")
    else: print("You lost! Better luck next time.")

    play_again = input("Play again? (y/n) ").lower()
    if play_again == "n": player = True
    else: player = False

print("Thanks for playing!")