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:A multi-platform emulator based on Hacktarux's Mupen64. It's about as accurate as Project64,<ref>loganmc10. [https://github.com/mupen64plus/mupen64plus-core/pull/336 ''Ignore TLB write if TLB entry is unmapping itself'']. "By the way, once this, along with the other PR's I have waiting are merged, we are at "compatibility parity" with Project64 as far as I can tell. I don't know of any game that doesn't boot with mupen64plus that works in PJ64."</ref> when both emulators are run with GLideN64. However, Mupen64Plus lacks a native GUI, instead being launched either from the command line or by dragging and dropping ROMs onto the executable and editing the config with a text editor. It also only comes bundled with outdated video plugins, so to ensure the best possible compatibility, sourcing better third-party plugins such as GLideN64 is a must. [[BizHawk]] and [[OpenEmu]] use forks of Mupen64Plus and its plugins for their N64 emulation, but they seem to be shallow. As of 2022 Project64-style overclocking for faster frame rates has been added under the option 'CountPerOpDenomPot'.

::As for the difference between the two cores, ParaLLEl-N64 is actually the older of the two, as it is based off of the old Mupen64Plus-libretro core, having been renamed to ParaLLEl-N64 upon its initial integration of the ParaLLEl-RDP and RSP plugins. In addition to the ParaLLEl plugins, it also retains the older HLE plugins (glN64, Rice, and Glide64), as well as Angrylion Plus. Meanwhile, Mupen64Plus-Next is a new rebase off of bleeding-edge mainline, and as such is the more compatible of the two. It does away with the legacy plugins and replaces them with GLideN64 as a better HLE solution (though of course, the ParaLLEl plugins and Angrylion Plus stay), it considerably cleans up the Core Options menu for easier configuration, and it adds Transfer Pack support. Add to this the fact that going forward, all further improvements and new features will be to the Mupen64Plus-Next core, and Mupen64Plus-Next is now the more recommended of the two, thus ParaLLEl-N64 should now only be considered for performance reasons or perhaps for older ROM hacks that don't play well with the newer, more accurate plugins.

:Rosalie's Mupen GUI is a project aiming to close the gap between Project64 and Mupen64Plus in terms of user experience. Its interface is about on par with m64p's in terms of cleanliness and ease of use, but unlike m64p, it allows you to use other plugins. The latest version comes bundled with GLideN64 and ParaLLEl-RDP for video plugins, and mupen64plus-hle-rsp and ParaLLEl-RSP for RSP plugins, though it can still use the older plugins that come with regular Mupen64Plus in case your PC cannot handle the newer plugins. However, for some reason it currently does not allow you access to ParaLLEl-RDP's options within its GUI, so if you wish to make use of features such as upscaling or downsampling, you must do so by editing the mupen64plus.cfg file, whereas m64p does expose these options in its GUI. However, if you prefer GLideN64, this is a superior alternative, as it does have access to its settings GUI, and the last version of m64p that uses GLideN64 is becoming increasingly outdated.