Is it possible to expand the maximum map size beyond 128*128?

As I understand, right now the maximum map size is 128*128. Is this a fundamental limitation? Can't it be increased?

Once the map gets bigger than that, you probably want it in chunks anyway for performance.

Yes. Obviously now I'll have to use chunks to make a larger map. But are the chunks loading fast enough to make the game experience seamless?

It depends on how optimized the code is, but it should be pretty quick. Just be careful of one-pixel gaps on chunk borders.

Thank you. I'll have to do some experimentation with larger worlds. To see how fast and seamless the transition between chunks can be made.