"Keep it alive" didn't help much with the brainstorming, until I remembered an idea to recreate Taito's classic 'Elevator Action' arcade game for my education in Unity.

There are a lot of things that can 'die', such as a car, laptop, or even something larger like a city. Well, I'm not creating a city -- far too ambitious for a one-person game jam entry. A game where you try to keep your car on the road sounds like a horrid cross between a racing simulator and an endless runner. That leaves a computer system -- maybe a system in control of an entire building?

Damn, I'm back to 'Elevator Action' again. Better sleep on it and see what comes of it tomorrow.