Day of the Tentacle (1993). Admittedly, it was the remastered version from 2016 which has more modern controls, but the game is exactly the same as the old one.
It was fascinating to look at it again with more mature eyes: besides the fact that it feels a bit dated as a whole, it was funny to me to notice how much humanity loves time travel stories.
It’s not that this game is doing anything different in that regard, it’s just that I thought about how much media exists on the subject (and has been very successful).
Anyhow, although dated, the game is brilliant and wholesome and made me wonder which are the best (and recent) graphic adventure games
Even if they did so, isn’t Firefox entirely open source? At least their work could be forked (though I agree if they don’t have the resources, hardly anyone else could make it)