Forget playing Doom on a calculator. Now you can play it with a clump of brain cells--no brainstem necessary.

What happens when you let AI create a game app without touching code? The answer exceeded all my expectations.

Big Walk is emblematic of how Panic operates its gaming business. Sasser says there are no “hard-and-fast rules” about how it approaches the titles it works on. “It’s really just like: What will this ...