I want to make Tetris pieces, the tetriminos. I know I can download them. I don't want to. I've used Paint.net and Inkscape, made logos and the like. But for games, which would I use? Does it matter?

It doesn't matter, as long as it can export transparent images of some type that your game can use as sprites. I'd probably use Inkscape out of personal preference, but there's no real benefit to doing so since tetris pieces don't have their own animations, nor do you usually need alternate-color versions Gimp would do just as well.

It doesn't matter, as long as it can export transparent images of some type that your game can use as sprites. I'd probably use Inkscape out of personal preference, but there's no real benefit to doing so since tetris pieces don't have their own animations, nor do you usually need alternate-color versions Gimp would do just as well.

Would Inkscape be better for sprites?

Would Inkscape be better for sprites?

Sprites are sprites, no matter what software you make them with. Use the software you like.