Three new levels are added for free and these are the ones being available in the demo version.
Some compare Butcher to a 2D Doom-inspired side-scrolling shooter. And if you decide to test the game, you will quickly notice why that is. You can use your Steam client to download the demo version of Butcher, and there’s a stand-alone build available on IndieDB (as reported by PC Gamer).
The game is heavily discounted right now and if you need another reason to check it, three new levels were added as a part of free update. All three are included in a demo and if you already own the full game, you will be able to select them on map selection screen.