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I've built a pretty nice RPG game, and I like the dynamics and how I've done it. I'm planning on rebuilding it, though, as I was planning to use my first version to gauge what I can/can't do and how things work.

I have a few major changes, I'm going to be making the game isometric [no problems there], and I want to make the game world one room rather than several small rooms.

Is there a point where the game world would get too large? If so, how large would that be?

I plan on still using different rooms for buildings and other miscellanious areas, but there would still be a large, isometric game world.

I wish I could give a good estimate on how large the room would be for the game room, but I can't give anything besides a very, very rough estimate. Somewhere along the lines of 10,000-100,000^2 pixels.

So to summarize, would the large game room filled with moving NPCs [most of them offscreen] and multiple other objects possibly make the game lag, and if so would there be a way to decrease the lag? [I'm thinking something along the lines of making NPCs not existing unless they're in view somehow]

It's been about 5 days with no help posted =/

I hope I've waited long enough to bump this thread.

Still looking for answers!