Narbacular Drop: The Original "Portal" Game is a 2005 3D puzzle-platformer developed by Nuclear Monkey Software , a team of students from the DigiPen Institute of Technology . It is most famous for being the spiritual predecessor to Portal ; after seeing the game, Gabe Newell hired the entire development team to recreate the concept at Valve . Official Narbacular Drop Download Links
The original developer's site provides the game, a 2D concept demo, and the level creation kit. narbacular drop download
The most reliable source for the final release version (v1.4). Narbacular Drop: The Original "Portal" Game is a
Contains various external links and mirrors for the game and its Hammer Editor tools. Gameplay and Mechanics Narbacular Drop - DigiPen Game Gallery Narbacular Drop - DigiPen Game Gallery. DigiPen Game Gallery Narbacular Drop - Valve Developer Community The most reliable source for the final release version (v1
The game was released as freeware and remains available for free through official university archives and developer mirrors.