If you right click Hammerwatch in your steam library and go in to properties, betas and select "testing - Public testing" (no password), it should download a patch for the game, it contains a few crash fixes and a few editor fixes, it might help.
The debug version does have cheats, if you open the console (with the standard ~/§ button depending on keyboard layout) theres a bunch of commands you can use, like "god" and "noclip" (use tab to list)