The short version
Adobe ended support for Flash Player on December 31, 2020, and started actively blocking Flash content on January 12, 2021. Every major browser removed Flash around the same time. Because Flash games ran inside that plugin, they simply stopped working — and thousands of them effectively disappeared from the web in a matter of weeks.
Why Flash was killed off
Flash didn't die suddenly so much as it was retired after years of warning signs:
- Security. Flash was a notorious source of vulnerabilities — a constant target for attackers and a headache for browsers.
- Performance & battery. It was heavy, crash-prone, and brutal on laptop batteries.
- It skipped mobile. Famously, the iPhone never supported Flash, and the world went mobile. A web technology that doesn't run on phones was doomed.
- The open web caught up. HTML5, JavaScript, WebGL, and the Web Audio API could finally do everything Flash did — natively, with no plugin.
Adobe announced the end of life back in 2017, giving everyone three years' notice before pulling the plug at the end of 2020.
The race to save them
An entire era of internet culture was about to be deleted, so preservationists moved fast:
- Flashpoint Archive — a community preservation project that began rescuing Flash games before the shutdown. It now offers a free, open-source launcher with over 160,000 preserved Flash games and animations.
- Ruffle — an open-source Flash emulator (written in Rust) that safely runs many old Flash files right in a modern browser, without the security holes.
- The Internet Archive — integrated Ruffle in late 2020 and hosts a big, freely playable collection of Flash games and animations.
Thanks to these efforts, the classics aren't truly gone — they're just somewhere new.
How to play old Flash games in 2026
- Flashpoint Archive — download the free launcher (or the smaller "Flashpoint Infinity" version) and search its enormous catalog. The most complete option.
- The Internet Archive — search its software/Flash collections and play many titles instantly in your browser via Ruffle.
- Ruffle — if you have an old
.swffile, Ruffle's browser extension or desktop app can often run it.
What you should not do is install some random "Flash Player" download from a sketchy site — those are a classic malware vector. Stick to the trusted preservation projects above.
The good news: the genre never died
Here's the part that matters most. Flash was the technology, not the games. Everything that made Flash games great — instant play, no download, one click and you're in — is exactly what modern HTML5 browser games do, just faster and on every device. The cave-flyer you played in Flash class lives on; it's just built on open web standards now.
Cave Carp is squarely in that tradition — a one-button cave-diving game that's a direct descendant of those Flash-era helicopter and cave games, rebuilt to load instantly in any modern browser with no plugin in sight. (For the full lineage, see the history of one-button games.)
The Flash cave game, reborn
Free, instant, no plugin. Hold to rise, release to sink, dive deep.
▶ PLAY CAVE CARPFrequently asked questions
What happened to Flash games?
Adobe ended Flash on December 31, 2020 and blocked Flash content from January 12, 2021. Browsers removed Flash support, so the games stopped running and many vanished.
Why was Flash discontinued?
Security holes, poor performance, no mobile support, and the rise of HTML5/JavaScript made it obsolete. Adobe announced the end of life in 2017 and retired it in 2020.
How can I play old Flash games now?
Use the Flashpoint Archive (160,000+ preserved games), the Ruffle emulator, or the Internet Archive's playable Flash collection. Avoid random "Flash Player" downloads.
Further reading: Adobe Flash (Wikipedia) · Flashpoint Archive
Keep reading: The history of one-button games · 20 best free browser games (2026)