I kinda wanted Automation, but this will do.

I’ve gotten 8 ideas so far:

My Auntie suggested keeping yourself alive by avoiding people infected with a virus in a Pac-Man like maze. A bit topical, but it works.

Then there is keeping a plant or animal alive, which is obvious, as well as keeping a town alive, keeping a sport alive, keeping an online game alive, and keeping an idea alive. All of those I came up with.

Finally, my little sister suggested keeping a time alive, like keeping the 50s or 80s alive.