High on Life is a comedic first-person shooter from Squanch Games featuring an incredibly long, 10,000-page script filled with improvisational, often vulgar dialogue. Beyond the main game, players can explore an in-game "Bol Messenger" system and translate a hidden alien language.
Full translation of alien text from hidden cave : r/highonlifegame high on life
The phrase can also refer to the idiom of being exuberantly happy without substances or a 2016 book. High on Life is a comedic first-person shooter