janisozaur
Open-source RollerCoaster Tycoon 2 reimplementation added JavaScript plugins
FYI: OpenRCT2 has support to consume RCT Classic assets as its base. Also, RCT Classic is available on Steam too (Windows and macOS only, though).
We're gradually moving towards C++, compiling our current C sources as C++ is the first step. Quite surprisingly too, we discovered how shitty a C compiler MSVC is, because just changing the C code of ride drawing to C++ made a huge performance impact there.
Reportedly, GCC also benefited from the switch, but the effect was less pronounced there.
We already kind-of do that, but it is scattered. See https://www.youtube.com/playlist?list=PL0YvVAW9aoL0jq8XIDee0... and https://www.youtube.com/watch?v=8i6IPPi91Xs and https://www.youtube.com/watch?v=bJxlCxnmRiU and https://www.youtube.com/watch?v=i0HTA79NcIE
These and other useful/current information can be found where most of the community is: on reddit /r/rct and /r/openrct2.