All the World's a Stage is a SKAM France Theatre AU as a Visual Novel.   If you like the game please go check out xJane's other work including the same story from Eliott's perspective:  And All the Men and Women Merely Players

Credits for music are all included in the about section of the game and in the description in the youtube video.  Special thanks to Polaris.Artworks.

Here is the full summary of the story and link from AO3:

All the World's a Stage (16034 words) by xJane

Chapters: 3/3
Fandom: SKAM (France)
Rating: General Audiences
Warnings: No Archive Warnings Apply
Relationships: Eliott Demaury/Lucas Lallemant
Characters: Eliott Demaury, Lucas Lallemant, Manon Demissy, Imane Bakhellal, Yann Cazas, Basile (SKAM France), Arthur (SKAM France), Alexia Martineau, Emma Borgès, Lucille (SKAM France), Daphné Lecomte
Additional Tags: Alternate Universe, Theatre AU, actor!Eliott, stage manager!Lucas, Meet-Cute, First Kiss, Fluff and Angst, Angst with a Happy Ending
Series: Part 1 of All the World's a Stage
Summary:

Lucas hasn’t ever worked with Demaury before, but he has heard of him, of course. He saw Demaury first in a small role in a modernized staging of Medea. As a professional in the theatre world, he appreciates Demaury’s talent. Eliott Demaury brings emotions to life effortlessly, and has a real connection to the audience. On a less professional note, as a… well, hot-blooded gay man, Lucas appreciates Eliott’s attractive features, slender waist, strong arms, crooked smirk and striking eyes probably even more than his talent.

When Daphné calls for “Eliott Demaury”, Lucas sits up a bit straighter. He is prepared to be blinded by the trademark megawatt smile of his crush. Lucas expects a confident, self-assured man, ready to claim his stake. Instead, in walks a boyish figure, almost hunched, in jeans and sneakers, with messy hair and what looks like paint stains on his hands.

It is hopelessly cute, to be honest.

***

Or, stage manager Lucas, competent, caffeine-addicted, and continually looking sexy in his stage black, starts working with actor Eliott, talented, timid, and trying to get Lucas out of his stage black.