Astral is superb to handle large maps. You can slice it and only the tiles being showed in the screen of the player are loaded in his pc memory. You also have access to DL on the free tier.
Back in the day we used to use a program called Open RPG. I am not sure if it is in service anymore, but it had a Fog of War mechanic, not sure about lighting though.
Astral is superb to handle large maps. You can slice it and only the tiles being showed in the screen of the player are loaded in his pc memory. You also have access to DL on the free tier.