I read another mention of Factorio today https://devblogs.microsoft.com/cppblog/bringing-correctly-rounded-math-to-production-with-llvm-libc/ https://devblogs.

I read another mention of Factorio today https://devblogs.microsoft.com/cppblog/bringing-correctly-rounded-math-to-production-with-llvm-libc/ https://devblogs.microsoft.com/cppblog/bringing-correctly-ro... It mentions how they had to use a custom math library to differences in results on different platforms causing multiplayer sync issues.