luajit - Ubuntu: libluajit-5.1-dev, Arch: luajit
sdl2 - Ubuntu: libsdl2-dev, Arch: sdl2

sdl_gpu - No avaliable binaries from package repositories afaik,
 either build from https://github.com/grimfang4/sdl-gpu or grab a
 released copy from https://github.com/grimfang4/sdl-gpu/releases
 
curlpp - Ubuntu: libcurlpp-dev, Arch: aur/libcurlpp

git clone https://github.com/emmachase/riko4
cd riko4
mkdir build
cp -r scripts build
cp -r data build
cd build
cmake ..
make