🤑 Indie game store🙌 Free games😂 Fun games😨 Horror games
👷 Game development🎨 Assets📚 Comics
🎉 Sales🎁 Bundles

Some of the RPGMAKER formatted versions use 32x32 versions of the tiles. Other than that, it's pretty fast to upscale them by 200%. Just keep "nearest neighbor" checked so the pixels don't blur.
As for expansions, you can expect more soon. :~)