I'm going to include free games that are worth playing in this section.
Previously Commercial Games:
 | Beneath a Steel Sky is free from ScummVM. Escape the city, uncover a conspiracy, and learn about your past. |
 | Flight of the Amazon Queen is free from ScummVM. A pilot crashes in the Amazon jungle, revealing a sinister plot. |
 | Mr. Smoozles Goes Nutso was updated and made free. Hypnotized Mr. Smoozles is helping aliens erase the universe. |
 | Teen Agent is free from GOG.com. A teenager is hired as a spy to discover how a millionaire is acquiring his riches. |
Free games with original stories:
 | A recent college graduate becomes a paranormal investigator and is called to investigate cases around the world. |
 | Help the crooked cop Dangeresque manufacture evidence to "solve" a crime so the chief will let him go home. |
 | Search for the legendary magical Peas of Kejick, in order to receive a reward from the King! |
 | You play as Tim Schafer! It's a Double Fine adventure game! It has injokes! How could I possibly not add this here? |
 | Confront the dragon "Trogdor the Burninator" for destroying your thatched roof cottage. |
Fan games with original stories:
 | MindFactory presents a fan game that takes place between the 2nd and 3rd Broken Sword and was approved by Revolution Software. |
Fan remakes:
 | AGD Interactive's King's Quest I remake has an improved interface, voices, improved graphics, and music. |
 | AGD Interactive's King's Quest II remake has mouse control, voices, improved graphics and music, and new puzzles and additional dialog. |
 | AGD Interactive's King's Quest III remake has mouse control, voices, improved graphics and music, and new puzzles and additional dialog. |
 | The Infamous Adventures King's Quest III remake has mouse control, voices, improved graphics, music, and sound effects. |
 | The Lucasfan Games remake of Maniac Mansion has music, improved graphics and a slimmed interface with inventory icons. |
 | AGD Interactive's Quest for Glory II remake has an improved interface, graphics, and music. |
 | The Infamous Adventures remake of Space Quest II has mouse control, voices, improved graphics, music, and sound effects. |