LucasArts is a video game company that used to be a developer, and made many games that I adore. Up until the turn of the century, they developed their own video games, and were at the forefront of innovation in their industry. They began in 1982 as part of the computer division of Lucasfilm, and once shared their offices (and occasionally their talent) with Industrial Light and Magic and another of my favorites, the Lucasfilm Computer Graphics Project, which would later be sold to Steve Jobs and renamed Pixar.
I am a huge fan of the adventure games created by LucasArts, specifically the point and click games using the SCUMM scripting language. These games include the Maniac Mansion series, the first four games in the Monkey Island series, the Indiana Jones adventure games, Loom, The Dig, Zak McKracken and the Alien Mindbenders, Sam & Max Hit the Road, and Full Throttle. I also enjoyed Grim Fandango and Escape from Monkey Island, which used their keyboard or joystick-based GrimE engine based on the LUA scripting language. I haven't played their only remaining adventure, Labyrinth, yet.
After LucasArts cancelled the sequel to Sam & Max Hit the Road, Freelance Police, several of the team members of that game left LucasArts to form Telltale Games. Telltale is making comedy episodic adventure games. The model is different, as the games are short games released monthly forming "seasons" like television shows. Even so, they retain the spirit of the adventure games LucasArts used to make.
The Curse of Monkey Island project co-leader, Bill Tiller, formed Autumn Moon Entertainment with several ex-LucasArts employees. Their games are more true to the classic LucasArts adventure games, as they are full-length retail comedy point and click adventure games.
In July 2009, LucasArts finally started licensing their adventure game properties. Telltale Games developed a five episode Tales of Monkey Island, with each episode acting as a chapter of the complete story, just like the chapters in the previous games. LucasArts is also getting back into the business of making adventure games. They released a remake, also in July 2009, of The Secret of Monkey Island with new high definition artwork and music, restoration of deleted scenes, and a changed interface called The Secret of Monkey Island SE. The new material was added to the SCUMM script from the VGA version of Monkey Island. So, this was the first time LucasArts has released a new SCUMM game since The Curse of Monkey Island in 1997! I never would have imagined a LucasArts SCUMM game would ever be released in the 21st century. 
Disney purchased all of Lucasfilm in 2012, and stopped all internal development at LucasArts in April 2013. They still are open as a publisher and licensor though, so there's still a chance that they'll license their adventure game properties out to someone like they did with Telltale in 2009.
And they have. It was announced in 2014 that Double Fine is making special editions for Grim Fandango and Day of the Tentacle.
