Equestria: The Lost Age.

Myst

It has come to my attention that not every one knows what Myst is, so her is a summery of it.

Myst is a graphic adventure video game designed and directed by the brothers Robyn and Rand Miller. It was developed by Cyan (now Cyan Worlds), a Spokane, Washington–based studio, and published and distributed by Brøderbund. The Millers began working on Myst in 1991 and released it for the Mac OS computer on September 24, 1993; it was developer Cyan's largest project to date. Remakes and ports of the game have been released for Sega Saturn, Microsoft Windows, Atari Jaguar CD, 3DO, CD-i, PlayStation, AmigaOS, PlayStation Portable, Nintendo DS, and iOS by publishers Midway Games, Sunsoft, and Mean Hamster Software.

Myst:

The game puts the you in the role of "The Stranger" who stumbles across an unusual book titled "Myst". The Stranger reads the book and discovers a detailed description of an island world called Myst. Placing his hand on the last page, the Stranger is whisked away to the world described, and is left with no choice but to explore the island. Myst contains a library where two additional books can be found, colored red and blue. These books are traps that hold Sirrus and Achenar, the sons of Atrus, who once lived on Myst island with his wife Catherine. Atrus writes special "linking books" that transport people to the worlds, or "Ages", that the books describe. From the panels of their books, Sirrus and Achenar tell the Stranger that Atrus is dead, each claiming that the other brother murdered him, and plead for the Stranger to help them escape. However, the books are missing several pages, so the sons' messages are at first unclear, and riddled with static.

As the Stranger continues to explore the island, more books linking to more Ages are discovered hidden behind complex mechanisms and puzzles. The Stranger must visit each Age, find the red and blue pages hidden there, and return to Myst Island. These pages can then be placed in the corresponding books. As the Stranger adds more pages to these books, the brothers can speak more clearly. Each brother maintains that the other brother cannot be trusted. After collecting four pages, the brothers can talk clearly enough to tell the Stranger where the fifth page is hidden. If the Stranger gives either brother their fifth page, they will be free. The Stranger is left with a choice to help Sirrus, Achenar, or neither.

Both brothers beg the Stranger not to touch the green book that is stored in the same location as their last pages. They claim that it is a book like their own that will trap the Stranger. In truth, it leads to D'ni, where Atrus is imprisoned. When the book is opened, Atrus asks the Stranger to bring him a final page that is hidden on Myst Island; without it, he cannot bring his sons to justice. The game has several endings, depending on the player's actions. Giving either Sirrus or Achenar the final page of their book causes the Stranger to switch places with the son, leaving the player trapped inside the Prison book. Linking to D'ni without the page Atrus asks for leaves the Stranger and Atrus trapped on D'ni. Linking to D'ni with the page allows Atrus to complete his Myst book and return to the island. Upon returning to the library, the player finds the red and blue books gone, and burn marks on the shelves where they used to be.

Riven:

Riven's story continues where Myst left off. The player once again assumes the role of the "Stranger" in order to help Atrus. Atrus needs the Stranger's help to free his wife, Catherine, who is held hostage on the slowly collapsing Age of Riven. Her captor is Gehn, Atrus' manipulative father and self-appointed ruler of Riven. Gehn is himself trapped on Riven, as Atrus and Catherine had previously removed all linking books from the Age; the very last book to be removed, linking to the Age of Myst, was the one they held to escape Riven. In the misbelief that it would be destroyed, they let the book fall into the Star Fissure, a rift leading out of the damaged Age of Riven into a mysterious, space-like void. Catherine was later tricked into returning to Riven by her sons, whereupon she was taken hostage by Gehn. Eventually, the Stranger discovered the unharmed Myst book, sparking the events of Myst and, some time later, Riven.

At the beginning of Riven, Atrus equips the Stranger with a trap book—a snare that functions as a one-man prison, yet looks identical to a linking book—and his personal diary. This diary summarizes the history of events leading to the Stranger's present situation; Atrus cannot explain in depth, as he is engaged in rewriting the descriptive book of Riven, in an attempt to slow its deterioration. The Stranger must enter the Age with no way of leaving, as they cannot risk sending a real linking book to Riven until Gehn is safely imprisoned, in case he should seize the book and use it to escape his confinement. Instructing the Stranger to capture Gehn in the trap book, find Catherine, and then signal him, Atrus holds out the link book that will transport the Stranger to Riven.

Once there, the Stranger explores the islands of Riven, eventually finding Catherine's prison. The Stranger also travels to the Age of the Moiety, rebellious inhabitants of Riven who, under the leadership of Catherine, are attempting to overthrow Gehn's rule. Because of the decay of Riven's structure, the only way to clearly signal Atrus is to bring about a massive disturbance in the Age's stability—accomplished by reopening the Star Fissure, which Gehn had closed. When it opens, Atrus immediately links to Riven to investigate, and meets the Stranger at the brink of the Fissure. Depending on the player's actions, the ending to Riven varies. In the winning ending, the Stranger tricks Gehn into the prison book and releases Catherine. Atrus and Catherine thank the Stranger, before linking back to the Age of Myst. The Stranger then falls into the Star Fissure, to be taken on the path back to his world. Different player actions can result in the Stranger's entrapment in the prison book, or even his death.

Myst III: Exile:

Exile begins 10 years after the events of Riven, when the Stranger arrives at the home of Atrus and his wife Catherine. Atrus is a scientist and explorer who has mastered an ancient practice known as the Art: he can create links to different worlds, called Ages, by writing special books. This ability is by an ancient civilization known as the D'ni, whose society crumbles after the D'ni city is devastated by a plague. Atrus calls the Stranger to his home to display his newest Age, Releeshahn, which Atrus has designed as a new home for the D'ni survivors.

As Atrus is preparing to leave for Releeshahn, a mysterious man appears in Atrus' study, steals the Releeshahn book and leaves behind another. Following the thief, the Stranger arrives at J'nanin, an Age that Atrus had written long before as a way to teach the Art to his sons. Because the thief has caused considerable damage to the J'nanin book, Atrus cannot accompany the Stranger.

The mysterious man is named Saavedro. Twenty years earlier, Atrus' wayward sons Sirrus and Achenar destroyed Saavedro's home Age of Narayan and trapped him on J'nanin. Saavedro believes his family is dead and swears vengeance on Atrus, unaware that Atrus has already imprisoned his sons for their crimes and that Saavedro's family is still alive. The game can end several ways depending on the player's actions. In the most ideal scenario, Saavedro returns to Narayan peacefully after giving back the book of Releeshahn. Other endings result in Saavedro destroying Releeshahn or killing the player; another option allows the player to leave Saavedro trapped forever.

Myst IV: Revelation:

Atrus calls the Stranger to his home to request his friend's assistance. Years earlier, his two sons, Sirrus and Achenar, destroyed Atrus' linking books and imprisoned their parents in order to plunder the wealth of Atrus' Ages. The Stranger's intervention saved Atrus, who had imprisoned his sons via traps intended for thieves. As it has been twenty years since their imprisonment, Atrus' wife Catherine hopes they have finally repented for their crimes. Atrus is not as sure his sons have reformed, and so wishes the Stranger to act as an impartial judge. After an explosion knocks the Stranger unconscious, the player realizes that Yeesha, Atrus' daughter, has disappeared.

The Stranger sets out to find Yeesha. Traveling to the brothers' prison Ages of Spire and Haven, the Stranger discovers both have escaped their confinement. When the Stranger finds Yeesha again, Achenar appears and tells the Stranger not to free his sister. Achenar explains that his brother kidnapped Yeesha with the intent of switching minds with her, tricking Atrus and Catherine into teaching Sirrus the Art of writing Ages. Achenar insists that he has reformed and that he only escaped so that he could protect his sister. The ending to the game depends on the player's actions; in some endings, Sirrus succeeds in transferring his mind to Yeesha's body and dispenses with both the Stranger and Achenar. In the only good ending, the Stranger trusts Achenar and helps save Yeesha. Sirrus dies from the failed mind transfer, while Achenar is fatally poisoned by toxic fumes in order to save his sister. The Stranger returns Yeesha to her parents. Though pained by his sons' deaths, Atrus resolves to continue on and rectify his past mistakes by properly raising Yeesha.

Myst V: End of Ages:

The game begins as the player responds to a letter from a despondent Atrus. Atrus is a writer of special volumes called linking books, which serve as portals or links to worlds known as Ages. A linking book to the Age of Myst, the setting of the original game, lies sealed in the ruins of the ancient D'ni civilization. The D'ni had the ability to craft linking books, but their society crumbled from within; Atrus and his family have been trying to restore the D'ni people and created an Age for the survivors to live on, known as Releeshan.

The player encounters a strange tablet in the old D'ni caverns. Yeesha, the daughter of Atrus, appears and explains that legends state that in order to fully restore D'ni, someone known as the Grower must utilize the tablet. The artifact has the ability to fully control a mysterious enslaved race known as the Bahro. As Yeesha made the wrong decision upon unlocking the tablet, she can no longer use it; Yeesha instead charges the player with uncovering the tablet's power. After leaving Yeesha, the player meets a D'ni named Esher, who tells the player that Yeesha cannot be trusted and not to give her the Tablet.

At Yeesha and Esher's urging, the player travels across four Ages, collecting four slates that unlock the tablet's power. The player is then faced with the choice of what to do once the tablet is unlocked. Depending on the player's decisions regarding the tablet, there are several possible endings to the game. Traveling to the island of Myst without the tablet will cause Esher to angrily abandon the player on the Age with no way out. If Esher is given the tablet, he will explain he wishes to use the tablet for domination, and will also leave the player trapped. If the player gives the tablet to Yeesha, the tablet simply slips through her hands and disappears into the ground; she walks away, disappointed, leaving the player trapped in D'ni. The only good ending involves giving the Bahro the tablet, ending their enslavement. Arriving at Releeshan, the new home Age of the D'ni, Yeesha and an old Atrus thank the player and speak of a new chapter for the D'ni people; Esher is handed over to the Bahro. The game ends on a vista of Releeshan.

if you ever get a chance to play these games then you are in for a lot of fun. They test your knowledge and problem solving skills at a level that makes it fun.

here are links to some of their "Lets Plays":