Jackhammer is a brand new level editor for games with a quake-style BSP architecture (Half-Life, Quake, Quake II, Quake III). The aim is to develop a convenient cross-platform tool capable of incorporating the best features of existing editors, such as Valve Hammer Editor, Q3Radiant and others. The list of supported games will be extended. Today you can try the new version 1.1, which is much more stable and introduces a lot of new editing features. Remember that your feedback is always welcome!