How do I make a 2D pixel game?

I want to make a 2D pixel game. I need some suggestions and answers to make it. I know I have Unreal Engine 4.16,
And a lower-end machine. I have .png models for the game but I don’t know how to import them correctly.
Here are some of the devices on my machine:
Intel Celeron CPU,
3.00 GB RAM,
Acer,
Windows 10 Creators Update (64-Bit),
And Graphics I can’t name.

Any ideas?