Which 2D engine to choose for a novice programmer?

Question

linux

Hello, I am a novice programmer, I decided to make a toy for myself and for studying in this segment, there is a desire to make a simple tycoon with the possibility in the future to do something more serious on this engine (or more powerful, but it is 2D), tell me, please, 2D -engine for learning and creating a simple game.
Thanks in advance!

Answer 1

SDL

Answer 2

Unity 4.3

Answer 3

Love2D