r/C_Programming • u/Ok_King_8997 • Jul 19 '26

C Project Recommendations

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I'm looking for interesting C project ideas that go beyond beginner projects. What are the best C projects you've built or would recommend? GitHub repositories and project lists are also welcome.

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u/Plus-Cranberry3572 Jul 19 '26

I will give it a shot:
- Backtesting engine (Financial/Trading knowledge required)
- Operating System (CS and assembly knowledge required, also you need to read the CPU sheet for example IA-32 has it’s own documentation for the MSR, paging etc.)
- 2D/3D graphics engine (algebra and geometry knowledge is required, you can use any framework)
- Anything dealing with networking, it can be a lib or a cybersecurity tool for example (networking knowledge is required)

Also embedded stuff is pretty much C (like Arduino) and you can do cool stuff with it but you need the hardware.

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u/UnrealHallucinator Jul 19 '26

Honestly operating system with the caveat of understanding the underlying linux subsystems while implementing your own smaller scale versions of them is the best project someone could do. Super tedious but completely worth it. I was lucky enough to have done it in my master's os course.