Ya its super hard, but I think thats kinda the point. It has a similar feeling to rain world where you are just exploring some world where everything can and will kill you, instead of a more gamey world thats trying to actually be fair and let you win if that makes sense

Kinda surprised no one has mentioned Noita yet. Its a roguelike where every pixel is simulated, which lets you do cool things like burning the floor walls to light enemies on fire, then putting it out with some water (and also just makes it look really cool). Also even though its a roguelike the world is still completely, open so you can go back and forth from harder areas to the earlier ones, which i havent really seen before.