Hi there i was willing to ask I wanna learn how to make a game like yandere simulator
What type of game is it and what engine should i use?

Seems like a third person action/adventure. Of course, this is a broad category, but you can start from that.

Any modern 3D engine should be more than enough, so it's more a case of your skillset, not the engine. These kind of games usually have many subsystems (combat, stealth, minigames, npc cycles, etc) that you have to create anyway.