I remember when the Hero Quest boardgame came out. We, some friends and I, immediately grabbed a copy of the game and began to play it several weekends in a row creating our own adventures after a while.
Weekend Fun Last Scenario Game
If you are looking for a great roleplaying game for the weekend you should definitely take a look at the excellent Last Scenario game. It reminds me a lot of those old SNES and Sega Genesis roleplaying games that were so much fun to play back then.
Last Scenario puts you in charge of a self proclaimed town protector named Hilbert who is nothing more than a boy at the beginning of the game who is soon to become the savior of the world. If this sounds a little bit to cliched for your taste you should wait and see how the story unfolds.