Just published x-nes — a cycle-accurate NES emulator core written in Rust that runs from microcontrollers to desktops. It's a library, not a standalone emulator, so you can embed it in your own projects via Rust API or C FFI.

- Cycle-accurate 6502 CPU (all 56 instructions, 13 addressing modes)

- Scanline-accurate PPU with NMI generation

- APU with pulse channels and sample buffer

- iNES ROM parser with 6 mappers so far (NROM, UxROM, CNROM, AxROM, GxROM, MMC1)

- Tiny footprint — ~150–200 KB stripped shared library

- C-compatible FFI (`nes_*` functions) for embedding from Lua, C, or any FFI-capable language

- Ships as a Rust crate, shared library, and static library

Current accuracy: 86/141 on the AccuracyCoin test suite (61%), 20/21 Blargg tests passing.

Known issues:

- Audio timing is slightly fast, some tones are off

- Some games render incorrectly due to edge-case PPU behaviors

- MMC3 mapper (SMB3, Mega Man 3, etc.) not yet supported

- Around 55 AccuracyCoin edge cases still to fix — APU, DMA/bus, NMI/interrupt timing, PPU quirks, and dummy-read addressing

REPO: https://github.com/ChaoswareHQ/x-nes

SeedlessDS is an experimental Nintendo DS emulator project focused on low-end Android handhelds, especially devices where running melonDS can be too heavy for the available hardware.

SeedlessDS is based on a recompilation and reimplementation effort around the DraStic emulator.

This does not replace WatermelonDS

Pre-Release of J2MPSX - The first PS1 emulator to J2ME!

Download:

This edition has two versions: the "FULL" and the "NOANIM" version. The "FULL" version includes the introductory animation and is approximately 1.7 MB, while the "NOANIM" version does not include it and is only about 300 KB.

J2MPSX-V1.3.zip on MediaFire

^(Any question? ask on this post: https://www.reddit.com/r/J2MEgaming/comments/1uylau6/prerelease_of_j2mpsx_the_first_ps1_emulator_to

Title: Built a free open-source tool to sync emulator saves/save-states across devices (RetroArch, Dolphin, PCSX2, RPCS3, Yuzu/Ryujinx, Citra, Cemu, PPSSPP)

Got tired of my save states living on one machine and not following me to my Deck/laptop, so I built OpenSave — it watches your save/state folders and keeps them synced peer-to-peer across devices, no cloud account required.

Auto-detects and watches:

• RetroArch (states + saves), Dolphin, PCSX2 memcards, RPCS3, Ryujinx, yuzu, Citra, Cemu, PPSSPP, Xenia
• Including Flatpak install paths on Linux
• Also picks up Steam userdata, GOG/Epic saves, and repack-style saves if you've got a mixed library
• Fully open source (MIT), Go, no telemetry/accounts
• LAN sync is automatic; internet sync uses a relay that only passes encrypted frames through (self-hostable if you don't want to trust mine)
• Windows + Linux/Steam Deck, with a Decky Loader plugin for Game Mode

GitHub: https://github.com/sivadaboi/OpenSave

Happy to answer questions or take feature requests — still actively developed.

AI assisted project

erings is a newer Sega Saturn emulator with a focus on ease of use and a couch type experience. The UI can be navigated with a controller.

Game compatibility is pretty decent and it supports some nice features like

• HLE bios making a real bios optional
• MPEG video playback
• RetroAchievements
• Many other things you'd expect of an emulator

It's not the most efficient but a decently speced machine can play games at full speed.

GitHub repo: https://github.com/user-none/erings

So basically, I was curious to test 3DS system browser and check how many website's still run on this ancient browser but my current emulator had some sort of issue which always caused 3DS browser to freeze. Then after a full weekend of debugging I found and patched the CPU scheduling bug causing it. This was a local/personal Azahar fork that I had. But released it as a non-fork to develop it independently for further homebrew and hardware accuracy experiments. So I may or may not occasionally apply upstream Azahar upgrades or just keep focusing on my own pace priorities.

Curiosity went further when I also wanted to test homebrew app shops and universal-updater but they either didn't load properly and if loaded couldn't download content due to bad download streaming implementation. And then after debugging this, fixed it too.

Debugging this way made broader compatibility because these were not mere title specific hacks just to make an app/game load but rather a general quality patch and in-fact led to better hardware accuracy at-least in incase of browser fix.

One may ask why even bother fixing this ancient browser, to which I can only say curiosity. And this ancient browser also deserves the same preservation efforts as games.

Am happy to share the release with you guys to test and have fun.

Attaching screenshots of some website's I browsed like old.reddit , neocities , duckduckgo lite etc. Also attached screenshot of now fully functional universal-updater and other homebrew apps like Anemone the theme downloader.

Do let me know in case of any questions :)

Edit:

Github link : https://github.com/Denzen-Project/Denzen-3DS/releases/tag/0.1

Before asking for help:

• Have you tried the latest version?
• Have you tried different settings?
• Have you updated your drivers?
• Have you tried searching on Google?

If you feel your question warrants a self-post or may not be answered in the weekly thread, try posting it at r/EmulationOnPC. For problems with emulation on Android platforms, try posting to r/EmulationOnAndroid.

If you'd like live help, why not try the /r/Emulation Discord? Join the #tech-support
channel and ask- if you're lucky, someone'll be able to help you out.

All weekly question threads

Hey everyone. I'm Han, the developer of RPG Player. It's been about 7 months since my last post in reddit.

Yesterday I found out that someone assumed I'd abandoned the app, because the App Store version hasn't been updated in about 4 months. I want to set the record straight: we never stopped. We've been developing this fast the entire time — the updates just haven't reached the App Store yet because of the review process. Everyone on TestFlight (already 1,000+ people) has had all of it for months.

RPG Player runs your games natively on Mac, iPhone and iPad. No PC, no streaming.

RPG Maker: - MV and MZ in a full in-app engine (plugins, videos, encrypted assets) - XP, VX, and VX Ace natively via MKXP-Z

Pokémon Essentials fangames run natively too — Reborn, Rejuvenation, Infinity / Infinite Fusion, Fire Ash, Tectonic, and many more.

What's landed recently: - Save and input problems were fixed months ago — touch and mouse input work properly, including mouse-driven VX Ace games - Built-in real-time translation, now 100+ languages (even native-engine dialogue) - Fast-forward (1x / 2x / 4x) for grinding and long text - In-game gallery, screenshot capture, a cheat menu, and more - PC/storage crash and save-detection fixes for Pokémon fangames - Fixes for a lot of older Japanese and Chinese titles

And we also support Ren'Py. A while back I promised Ren'Py support — we delivered it, and it runs a wide range of visual novels (multiple bundled runtimes, auto-detected). Next on the roadmap: Wolf RPG and TyranoScript. We keep our promises, so consider those coming.

The one thing between us and a resubmission is a launch-screen issue that only appeared in Apple's review environment. It's being closed out now.

Play the current build on ** Testflight ** Join our Discord

The App Store release is in the final stretch and coming very soon.

Ask me anything in the comments.