A community and carefully curated collection dedicated to vintage browser-based games that used Adobe Flash is known as Lacey's Flash Games. Imagine short arcade tasks, oddball physics puzzles, and narratively focused point-and-click adventures that are created by independent developers and played in a web browser.

Flash portals were very popular between the early 2000s and the middle of the 2010s. Creators iterated quickly, communities grew around speedruns and high scores, and games loaded in seconds.
Browser support ended as security concerns increased and standards changed. Numerous games, including smaller experimental projects that never made it to app stores, ran the risk of going extinct.
These games were revived through emulation and preservation efforts. Curation is the main focus of collections like Lacey's; they find functional builds, repair broken links, and provide secure, well-organized access via contemporary browsers.
Generally no—most games run via embedded emulation in your browser.
Yes, if the game allows it. Usually stored in your browser's storage, saves can be erased by clearing site data, so make a backup whenever you can.
Yes, frequently, through remapping tools or gamepad APIs in browsers. For details, see the notes for each game.
Because they're fast, sharp, and wildly imaginative. They're a reminder of the fun that can be contained in a two-minute loop, and how well-executed mechanics can transcend production scale. Lacey's Flash Games is a living, carefully curated museum of Horror Games for the modern web, whether you're here for nostalgia or exploration.