I made Sitch for a game jam (with the theme: Switch). It's about being a bad landlord; as you frantically try to enable water and power in time for your tenants to use them, and then disable them again to save money.
It was my first time using Excalidraw to make all the graphics for a game. This freed me up to spend more of it on game mechanics and testing. Taht said, I don't think I nailed the graphics because a few folks mentioned they took a while to understand what was going on.
Feedback was generally positive, with a few people saying how they were heavily engaged with the gameplay. I've love to develop this intop a full game, with multiple levels. Something like PolyBridge...