Well, I never looked up on Löve, so I'm not sure whether it is as/more powerful as/than it, but I can try answering most of these questions.
Can Gosu handle SpriteSheets, either via a plugin/library or natively?Yup, Gosu can natively handle spritesheets. Using
Gosu::Image.load_tiles(window, path, width, height, tileable?)
(where width and height is the size of
single sprite (if you're not sure what is the size of single sprites, but know that spritesheet will be ex. 8x8 sprites, use negative values to divide)) will create an array (1d) of Images from given file. You can then access them in other methods, such as
draw
Can Gosu render Tiled maps?If you mean maps created with program called Tiled (
http://www.mapeditor.org/ ) then I'm not sure. If you mean normal tiled map, with tiles stored in 2d array, then yes, Gosu can render those easily, with simple
for
loops.
Is Gosu capable of creating a commercial game? Purely curiosity!!Of course, Gosu is capable of creating a commercial game.
Is Gosu still active?Yup. Gosu is still active, and it is actively being updated (as far as I'm aware). Surely any problem you have with it will be dealt pretty fast, depending on the problem.
I asked this a while ago, but maybe there's one now: Is there a tutorial on Gosu? If not, can I have a game to learn from?There is definately one tutorial, you can find it here:
https://github.com/jlnr/gosu/wiki/Ruby-Tutorial . I guess that's the tutorial most of us (if not all) started with. More you will probably have to learn by yourself, but there are few basic files, well commented too, that you can find in your Gosu gem location, in "examples" folder. Where is it depends on where you installed ruby, ex. on my desktop the path is:
C:\Ruby192\lib\ruby\gems\1.9.1\gems\gosu-0.7.47.1-x86-mingw32\examples
Are there any commercial games made using Gosu?I don't know that, but I'm actually wondering that myself. I think I read about a Ruby/Gosu game being sold on Steam somewhere, but I'm not sure where, and if I really did, so... yeah.