Don't use people's games to self-promote that's very self-centric and stupid.
If you want to promote your game, then do it the right way through social media and create an awesome game that will make people want to play it and support you.
I'm not saying building a fan base and maintaining is easy I have many friends who create games and they all struggled at the start
But with enough dedication and hard work you will be able to do it
I recommend you check out these hacks by Nefu he gives amazing tips to promote your game without resorting to shamless self promotion