Online Game Emulation Platform – Afterplay.io

In plain words

Afterplay.io is a web-based emulation platform that lets users upload and play SNES and GameBoy ROM files directly in their browser. The service stores games on its servers and automatically saves gameplay progress every 20 seconds, allowing users to start playing on one device and resume on another across PC, Mac, Android, and iOS. It addresses the limitation that traditional emulator apps are not available on Apple's App Store.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hello HN users, I made a web app that allows you to upload any SNES or GameBoy ROM file and play right within the web browser. It’s called Afterplay.io. It got a lot of upvotes on Reddit, and I noticed users signing up and coming back to play games every day, which feels great and has motivated me to keep on…

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  Afterplay2023 · afterplay.io · ▲113

  We just launched the Afterplay Store. It lets you buy new retro games and start playing instantly in your browser, with no installs or setup. Here’s a quick demo: https://www.youtube.com/watch?v=uoChUbaspbI We’re launching with publishers like Mega Cat Studios and Incube8, with more to come. The goal is to make retro games as easy to access as modern ones. Would love any feedback.

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  Play your retro games in a browser with cross device saving2022 · afterplay.io · ▲6

  Afterplay lets you buy and play retro games instantly in your browser or on mobile — no emulators to set up, no downloads, with saves that sync across every device.

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  NES Party – Online Multiplayer NES Emulator Using WebRTC2018 · nes.party · ▲237

  Play classic 8-bit retro games online with friends! Free multiplayer emulator in your browser. No downloads required.

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  Multiplayer for Retro Games Online – Play with Friends Anywhere2024 · youtube.com · ▲5

  We've just added netplay to https://afterplay.io

• IA
  IronBoy, a highly accurate GameBoy emulator written in Rust, runs WASM2023 · nicolas-siplis.com · ▲33

  Hey HN! Been working on this emulator on and off for the last couple years, and thought now would be a good time to try and show it off here. As far as unique features... I think this is the only online GameBoy emulator with support for save files? So there's your reason to exist, I guess. The WASM port was something I had in the back of my mind but I just kept putting it off because it seemed like it would've been a pain in the ass to implement, but all in all I think it took less than a week so that was a nice surprise!

• CP
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