For your free Twitch first-impression option, I’m sharing Primal Strain on behalf of Portal Rabbit.
Genre: creature-creation survival/strategy. Draw a creature, choose its stats and abilities, gather food and raise a brood against rival species. It’s a free browser demo in development, with generative AI assistance used in its creation. Desktop is recommended.
Game: https://dopamineloop.itch.io/primal-strain
Useful things to test would be whether the creature editor and opening controls are clear, and whether the food/nest/brood systems make sense to a first-time player.