{"id":16563731,"url":"https://github.com/nathsou/nessy","last_synced_at":"2025-04-12T22:29:59.145Z","repository":{"id":181694544,"uuid":"317766585","full_name":"nathsou/nessy","owner":"nathsou","description":"NES emulator for the web","archived":false,"fork":false,"pushed_at":"2024-08-30T20:26:02.000Z","size":1193,"stargazers_count":4,"open_issues_count":1,"forks_count":3,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-03-26T16:38:42.618Z","etag":null,"topics":["6502-assembly","audio","emulation","emulator","famicom","nes","nes-emulator","roms","rust","wasm","web","webassembly"],"latest_commit_sha":null,"homepage":"https://nathsou.github.io/nessy/","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/nathsou.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-12-02T06:06:06.000Z","updated_at":"2025-01-18T23:52:53.000Z","dependencies_parsed_at":null,"dependency_job_id":"e1d32e55-710d-4c40-b7a9-a443485afd69","html_url":"https://github.com/nathsou/nessy","commit_stats":null,"previous_names":["nathsou/nessy"],"tags_count":1,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nathsou%2Fnessy","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nathsou%2Fnessy/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nathsou%2Fnessy/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nathsou%2Fnessy/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/nathsou","download_url":"https://codeload.github.com/nathsou/nessy/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":248639513,"owners_count":21137855,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["6502-assembly","audio","emulation","emulator","famicom","nes","nes-emulator","roms","rust","wasm","web","webassembly"],"created_at":"2024-10-11T20:42:09.851Z","updated_at":"2025-04-12T22:29:59.115Z","avatar_url":"https://github.com/nathsou.png","language":"Rust","funding_links":[],"categories":[],"sub_categories":[],"readme":"# NESSY\n\n![Logo](resources/logo.png)\n\n**A Nintendo Entertainment System (NES) emulator for the web**\n\n[Play it online](https://nathsou.github.io/nessy/)\n\n## Screenshots\n\n![Metroid](resources/metroid.png)\n![Super Mario Bros.](resources/smb.png)\n![Tetris](resources/tetris.png)\n\n![Contra](resources/contra.png)\n![The Legend of Zelda](resources/zelda.png)\n![Super Mario Bros. 3](resources/smb3.png)\n\n![Kirby's Adventure](resources/kirby.png)\n![Castlevania](resources/castlevania.png)\n![Mega Man 2](resources/megaman2.png)\n\n## Features\n\n- Save states (CTRL+S to save, CTRL+L to load last)\n- Customizable controls\n- Full Screen mode\n- Working audio\n- Auto generated ROM backgrounds in the library\n- Save state preview in the saves menu\n- Gamepad support\n- Supported mappers: [NROM](https://nesdir.github.io/mapper0.html) (0), [MMC1](https://nesdir.github.io/mapper1.html) (1), [UNROM](https://nesdir.github.io/mapper2.html) (2), [MMC3](https://nesdir.github.io/mapper4.html) (4)\n\n## Settings Menu\nPress ESC / Tab to toggle the UI\n\nUse the arrow keys to navigate the menus and press enter to validate\n\n![Library](resources/library.png)\n![Saves](resources/saves.png)\n\n## Todo / Ideas\n\n- Support more mappers (3, 66, 118, ...)\n- Use an AudioWorkletNode instead of a scriptProcessor\n- Lock framerate at 60fps even on higher refresh rate displays\n- Support iNes 2.0 roms\n- Support Joypad2\n- Time travel mode (Save states recorded at regular intervals)\n- Replay mode (Replay all inputs from the start)\n- Different color palettes\n- Better UX\n- VR / 3D mode with sprites in front and bg tiles in the background?\n- Optimize! (JIT Compiler / frame by frame or scanline by scanline rendering instead of pixel by pixel)\n- Wide mode (for scrolling games, visualize the prefilled tiles in advance)\n\n## Embedding\n\nNessy can easily be embedded on other platforms, see the `3ds/` folder for a 3ds port (no sound and very slow frame rate for now).\n\n![3DS](resources/3ds.png)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnathsou%2Fnessy","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnathsou%2Fnessy","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnathsou%2Fnessy/lists"}