Question: Name the video game which was first published by Broderbund in 1983, and was the inspiration for the indie game N by Metanet Software?
Context: Gumball is a 1983 video game by Robert Cook and Broderbund in which the player controls the valves of a maze-like machine to sort gumballs by their color.  The player meets the quota of each level to earn their character—a factory worker—a promotion, resulting in a raise in difficulty with more color choices and defective gumballs to exclude.  Broderbund co-founder Doug Carlston conceived of the game's machine-sorting concept, and Cook, the designer, added the gumball conceit and built the core gameplay within a week.  He later returned to add sound, decorative features, and a secret image that was only found three decades after the game's release.  "Gumball" debuted at the June 1983 Consumer Electronics Show and released for the Apple II, Atari 8-bit family, and Commodore 64.  Reviewers separately noted the difficulty of the game's later stages, praised its comical elements, and commented on the social role of simulating mundane work.  The game did not become popular and its copies became rare. IndieBox is a monthly independent video games (indie game) subscription box service.  Working directly with the indie game developers, IndieBox designs and manufactures boxed collector’s edition physical releases of games that are typically only available in digital form.  The company has been operating since May 2014.  Included in every monthly box is a digital rights management-free (DRM-free) game disc (custom-designed rewritable USB-stick for most boxes released before July 2016), Steam key, full-color printed instruction game manual, game soundtrack CD, sticker, and an exclusive collectible, such as a plushy or action figure of a notable character from that game.  All games are packaged in a physical game box similar to software titles in the 1980s and 1990s. N+ is the console and handheld version of the game originally made for systems powering Adobe Flash, "N", which was developed by Metanet Software.  "N+" for Xbox Live Arcade was developed by Slick Entertainment and published by Metanet Software.  Unique versions of the game were also ported separately to the PlayStation Portable and Nintendo DS by developers SilverBirch Studios and Atari.  Metanet Software licensed their "N" IP for this deal, provided single player level design for both versions, and consulted on the project. Lode Runner is a platform video game first published by Brøderbund in 1983.  Unlike later platformers which rely on precision jumping and movement, levels in "Lode Runner" are puzzle-oriented.  It is one of the first games to include a level editor, a feature that allows players to create their own levels for the game.  This feature bolstered the game's popularity, as magazines such as "Computer Gaming World" held contests to see who could build the best level. N (stylized as n) is a freeware video game developed by Metanet Software.  It was inspired in part by "Lode Runner", "Soldat", and other side-scrolling games.  It was the first of the N series, followed by "N+" then "N++".  N won the audience choice award in the downloadables category of the 2005 Independent Games Festival. SilverBirch Studios was a video game developer founded in 2004 by Kevin Birch.  SilverBirch Studios was based in the Greater Toronto Area of Ontario, Canada.  SilverBirch developed several mobile games and a handheld game, Metanet Software's "N+", for the DS and PSP.  N+ showed well at E3 2008 and received IGN.com's "Best Platform Game" at the conference.  N+ was released on August 26, 2008 for the DS and PSP in North America.  N+ won IGN Game of the Month for August 2008 for both DS and PSP.  As a result of losing external funding, Silverbirch Studios closed January 1, 2009. The Indie Game Challenge is an award competition run in conjunction between the Academy of Interactive Arts & Sciences (AIAS), GameStop and The Guildhall at Southern Methodist University (SMU) to support independent video game development.  Started in 2009, the competition highlights ten to twelve independent games, with winning games receiving monetary rewards in addition to the award.  The Indie Game Challenge ceremonies are held during the annual D.I.C.E. Summit, during which the finalists are able to demonstrate their games to the press. N++ is a platform video game developed and published by Metanet Software, and is the sequel to the Adobe Flash game N+.  The game was initially released for the PlayStation 4 game console on July 28, 2015 in North America, and July 29, 2015 in Europe, and was later released for the Microsoft Windows and macOS operating systems on August 25, 2016 and December 26, 2016, respectively.  A version for Linux is currently in development.  An expansion to the game, entitled "N++ Ultimate Edition", was released for the Windows version of the game on April 21, 2017, as a free update to the game. Derek K. Smart is an American video game designer.  He is the president and lead developer of 3000AD, Inc., an indie game development company based in Aventura, FL.  In addition he is the president of and investor in the video game development company Quest Online.  Smart is an independent video game designer and software developer, and the creator of several video game series. Christopher Bryan "Chris" Hecker (born 1970) is an American video game programmer and commentator.  He is the founder of the gaming company Definition Six and best known for his engineering work on Will Wright's 2008 game "Spore".  Hecker is an advocate for the indie game industry and co-founder of the Indie Game Jam.  He has written a number of influential articles on programming and has been an editor for "Game Developer Magazine" and the "Journal of Graphics Tools".
Answer: Lode Runner