Hi Obbo! Since you're coming from Roblox, a life sim might suit your audience. I made PingLife, a free browser game in the style of BitLife, but your whole life arrives as texts on a phone.
There's also a "Life of the Day" mode where everyone gets the same life, so your viewers could play the same one and compare how far they got.
https://pinglife.itch.io/pinglife
Do you prefer short games you can finish in one video, or ones you can come back to?