Gobble is an eat-and-grow arcade game: you start small, consume anything smaller than yourself, and each meal makes you bigger — which changes what you can eat and what can eat you.
It's the food-chain mechanic in its simplest form, and it works because the threat and the opportunity are always the same thing viewed from a different size.
Eat anything smaller than you. Each meal increases your size, which unlocks larger prey and removes some threats.
The threats scale with you — as you grow, what remains bigger is genuinely dangerous, so the risk never fully disappears.
Yes — drag to move. Nothing to install.