Nestalgia is a cross-platform and high-accuracy NES/Famicom emulator built in Kotlin. It's being ported from discontinued Mesen NES/Famicom emulator built in C++ and C#.

It implements only the emulator (no debugging tools).

• High Accuracy
• High Compatibility: Over 290 mappers supported
• NES, Famicom, Famicom Disk System, Dendy, VS System, NSF and NSFe emulation is supported
• Save States, Battery, Overclocking and Cheat Codes
• Configurable Region and Speed
• Fullscreen and Screenshot support
• Audio, Video, Controller and Emulation config support
• Zapper, Ascii Turbo File and Battle Box is supported
• Gamepad Support

Each mapper number represents a different cartridge type. Not all mappers are as important - some are used by hundreds of games, others are used by a single game. For example, mapper #4 is used by over 500 licensed games, while mapper #9 is used by a single game. Not all numbers from 0 to 255 have been assigned to specific cartridge models, some are still unused (gray).

Add it to your build.gradle:

repositories {
    maven { url "https://jitpack.io" }
}

and:

dependencies {
    implementation "com.github.tiagohm:nestalgia:core:master-SNAPSHOT"
}

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Before running, check if you have Java 8 or newer installed. Linux users will need to set execute permissions on the JAR.

• D-Pad: Arrow keys
• B Button: S
• A Button: A
• Select: Space
• Start: Enter

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Coming soon...

• The gamepad support for Desktop version uses Jamepad
• The first detected gamepad will be used as Standard Controller 1, and the second will be Standard Controller 2
• Y Button will take a screenshot
• X Button will save the game's state
• LB/RB restore the previous/next saved game's state
• Left thumbstick can be used as D-Pad