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Top 23 C Emulation Projects
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QEMU
Official QEMU mirror. Please see https://www.qemu.org/contribute/ for how to submit changes to QEMU. Pull Requests are ignored. Please only use release tarballs from the QEMU website.
Project mention: QEMU: Define policy forbidding use of AI code generators | news.ycombinator.com | 2025-06-25 -
InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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In the interest of completeness I looked deeper and there are a few more patches to the kernel and SEP OS done at emulation time:
https://github.com/ChefKissInc/QEMUAppleSilicon/blob/6eff3ab...
but really nothing too extensive or hard to port. It’s mostly flipping various can_has_debug returns, bypassing sigcheck, and the classic patch to flip launchd into research device mode.
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CEmu
Third-party TI-84 Plus CE / TI-83 Premium CE emulator, focused on developer features (by CE-Programming)
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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puNES
Qt-based Nintendo Entertaiment System emulator and NSF/NSF2/NSFe Music Player (Linux, FreeBSD, OpenBSD and Windows)
Project mention: Plastic – A Modern NES Emulator That Works with EGUI and TUI | news.ycombinator.com | 2024-10-19puNES also deserves more attention. It is highly accurate and supports obscure mappers and Famicom Disk System games: https://github.com/punesemu/puNES
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gearmulator
Emulation of classic VA synths of the late 90s/2000s that are based on Motorola 56300 family DSPs
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NTSC-CRT
NTSC encoding/decoding in C89 using only integers and fixed point math. Supports NES decoding. Can be used as an image filter for games or real-time applications.
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Project mention: RunCPM – execute vintage CP/M 8 bits programs on many modern platforms | news.ycombinator.com | 2024-09-08
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C Emulation discussion
C Emulation related posts
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VirtualBox Source Code
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Linux from the user's perspective - Part1: Installing Linux
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iPhone 11 emulation done in QEMU
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MinC Is Not Cygwin
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Running Phoenix applications on RISC-V: A Practical Report
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1972 Unix V2 "Beta" Resurrected
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How I used a named pipe to save memory and prevent crashes (in Perl)
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A note from our sponsor - Stream
getstream.io | 18 Jul 2025
Index
What are some of the best open-source Emulation projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | QEMU | 11,648 |
| 2 | xemu | 3,304 |
| 3 | desmume | 3,279 |
| 4 | QEMUAppleSilicon | 2,788 |
| 5 | mupen64plus-core | 1,415 |
| 6 | CEmu | 1,182 |
| 7 | RVVM | 1,070 |
| 8 | SkyEmu | 962 |
| 9 | vsmartcard | 788 |
| 10 | puNES | 716 |
| 11 | xqemu | 650 |
| 12 | RetroESP32 | 649 |
| 13 | virtualbox | 543 |
| 14 | Z80 | 512 |
| 15 | gearmulator | 503 |
| 16 | NTSC-CRT | 483 |
| 17 | RunCPM | 448 |
| 18 | Supermodel | 323 |
| 19 | wabbitemu | 304 |
| 20 | mupen64plus-libretro-nx | 260 |
| 21 | pinmame | 235 |
| 22 | gamekid | 234 |
| 23 | n64 | 179 |
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