I have been looking for 1D game ideas to implement on an addressable RGB LED strip. 1D pacman seems perfect, as it's instantly recognizable even with a single-pixel pacman and ghosts, by using the right colors.
Long ago – early 80s – UHF & cable-syndicated TV station WPIX (NY) offered live broadcast call-in videogames controlled by the caller's voice yelling "pixx!". Here's a peek of some of the forms it'd take:
https://www.youtube.com/watch?v=UJN9eM84Rq8
"Behind the scenes, the voice activation was really operators in the control room pushing the buttons." :)
The simple control of this 1D PAKU-PAKU game (or others you're considering) could be wholly voice-operated. (A fun trigger word nodding to an old 'Friends' episode might be: "Pivot!")
With modern voice-recognition/voice-printing, it might even be possible to have a multiplayer game where even though N players are all yelling the same trigger-word, the recognition disambiguates the speaker to control only their sprite. Or, use a larger vocabulary of control-words for more actions. 'Nibbler' with yelled commands "Up!"/"Down!"/"Left!"/"Right!" might be diabolically frustrating.
And those you probably found already:
• https://codeduino.com/projects/games/1d-pong-game/
• https://hackaday.io/project/185011-twang-esp32-led-strip-1d-...
also this one would be great to have it on an led strip: