There is a fully featured demo of HSL below that you can download and try completely free.
The HSL demo is restricted to six playable characters(three unlockable), and two full quests, but has unrestricted gameplay.
The full game features 32 playable characters, six quests, and the ability to add more characters and quests when they are released. One purchase will get you the Windows, MacOS, and Linux versions of the game downloadable right away. HSL is 100% DRM free, and 100% region free.