BSD-3-CLAUSE License
ld52 is a Haskell project, which means you're going to need a Haskell toolchain to compile it. First, install Stack and then run
$ stack run
you'll need sdl2 and openal. On Fedora:
$ dnf install sdl2 openal-devel freealut-devel
which will kick off a long build and eventually start the game!