Play it here: https://deepysingh800-games.itch.io/doodlera-drawn-existence
Doodlera: Drawn Existence is a sandbox game where you can spawn in creatures and watch them interacted with each other, since its a sandbox game there is no goal so do what you want to do in it, there is no wrong way to play! (but if you do want some kind of goal you could try to make an ecosystem or something
Source: itch.io