Hello! I had a quick simple new person question. For 2D pixel games, is it standard to use 1:1 pixels, or 1:4? I noticed after looking at some of the assets on the Unity Asset Store, that pixel art varied a bit where the creators used 4 pixels in Gimp for example to stand for 1 pixel in-game. I've been working 2D for a bit and would love any input or advice others have gained. Thanks!
Using 4 pixels per "pixel" is going to make the file size of each Sprite sheet bigger. I think it's probably better to draw everything at one pixel and scale up when you import into Unity.
1 unit in Unity is equivalent to 1 meter for physics. So if you will be using Unity's default physics, I would suggest making your pixels quite small. So like 100 pixels/unit would get you believable gravity with minimum coding (no writing custom physics).