Thou canst get DeamDung in various ways. Thou canst download a prebuilt jarfile on Codeberg.
Thou canst also get it on Itch:


Having downloaded the jarfile, just run it. Thou needst to have Java 8 or newer.
Alternatively, clone the repository, and run ./run.sh to run the game, and ./build.sh to generate a new jarfile. Note that this will not work on Windows, since I don't use it for development.