I’ve always thought that one way Esperanto could receive a good deal of notice is if it appeared in a popular video game. Perhaps appearing as a coded language of some kind would motivate people to learn it. As matters stand, I’ve only glimpsed Esperanto in one video game: the weird and wonderful Katamari Damacy.
One of the characters greets you with “saluton!” in the beginning of Katamari Damacy’s final level. I find it appropriate that the greeting comes from the purported “King of All Cosmos.” He rules the universe, so of course he’d approve of a universal language! You can glimpse a video of it on YouTube. I highly recommend the game or any of its sequels, too…It’s rather hilarious, as the rest of the video suggests!