How should I start developing an AI to automate gameplay

I’m interested in automating the gameplay for a Roblox game. I’ve read online and came to the conclusion that I should either pursue reinforced learning or behavioural cloning/imitation learning (I’m not sure of the difference). For RL, I don’t have access to a suitable game environment and do not know how to go about create a custom game environment. If anyone has any insight into developing such an AI I’d appreciate any advice. Thanks.

artificial automate cloning difference environment game imitation learning roblox