Alida

Alida was originally released in 2003. Alida is a point and click interactive graphical adventure game. The story centres around four young men in the band Alida that attained phenomenal success with their first CD release. Loads of money coupled with wild imagination resulted in construction of "Alida" - the theme park.
It's an unusual place - a giant guitar 330 metres long!
But these guys didn't stop there - the guitar can actually be played
(assisted by machinery);
the internal workings of the guitar can be accessed and manipulated
(machine heads, switch, pots etc..)
As Alida was nearing completion things got complicated, their popularity was waning and money stopped coming in. Distrust set in. Each of the band members claimed different areas of Alida for themselves where they devised weird and elaborate systems to protect their wealth. They retracted from each other finally leaving Alida uninhabited.
Fifteen years later one of the guys is missing on Alida...
Five years in the making, the Alida world will captivate you with meticulous graphics, unique locations, intriguing puzzles, bizarre transportation machines, ornate objects, electronic imagery, tactile contraptions, massive constructions, animated natural elements and original music score.
You will enjoy Alida if you like:
exploring and interacting with imaginative beautifully rendered 3D environments

solving puzzles that range from simple to complex

solving a mystery

playing a game intensely over a few days or casually over a long period of time

playing a game that you can enjoy with friends and family

playing a game that could take over your life...
No AI was used building Alida.