[felixgallo]

It depends on your level of programming expertise and how deep you want to get into the discipline, and what sort of games you want to make.

If you want to make 3d games for major platforms and are of moderate to high programming talent, it's hard to beat Unity at this time. The Unity Asset Store is an inexpensive source of great starter projects, temp assets, and commonly needed libraries.

That said, making 3d games at all is deeply nontrivial and I wouldn't recommend it as a solo hobby owing to the very large surface area (art, design, game design, geometry, game logic, tooling, etc.). You can get to the 85% level in everything but modern consumers will be unsatisfied with the quality.

For 2D, especially for getting to a shippable product, I might try LOVE or Moai, although both of those are on shakier foundations support-wise. Don't let anyone tell you having anything to do with Python.