Find the right timing if you were to talk about this to him. I did that to my husband while we're lying on bed and felt relax (someone suggested it to me) He'll understand you as you properly communicate your needs and concerns. My husband is also a gamer and an avid collector of those toy collectibles, but I made my self clear in that matter and I also expressed my views and told him I also need him to be my alternative caregiver when I am already exhausted. They would frequently answer with it's their stress-relieving technique but might as well request him to alot a specific number of hours for playing while considering the help you need.
Magbasa pa