This is my written review of, what I thought, were some the most intriguing pixel art games available via itch.io - each game/experience is free to download, 30 min to an hours in length, and should run adequately on low-spec computers.
However, if you are not interested in the review, here are the games listed:
Thanks for reading - let me know if you have any questions or suggestions for additional games/experiences
From MANDAGON by Blink Sky Studios