2D Zelda-dungeon crawling with random items. Perfect for low spec laptops.
GOG.com: Offers DRM-free games. They frequently give away older classic titles for free that run perfectly on older machines.
Epic Games Store: Offers a "Free Game of the Week" which occasionally includes indie titles runnable on low-end hardware.
Itch.io: A marketplace for indie developers. Many developers upload small, experimental games that are free or "pay-what-you-want" and run on minimal specs.
ModDB: The primary source for standalone mods. Many total conversion mods (e.g., for Half-Life 1 or Doom) act as free games.
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