I have seen too many maps of caves that are just horrible. So I decided to share my method for creating interior cave maps.
First, you need to know the difference between a good cave, and a bad one.
Good
this map is the kind I'll be showing you how to make. It looks fairly natural, like a real cave, except with no visible ceiling and viewed from a birds eye view. If you don't like it then I suggest you hit the back button, now.
Bad
This is the worst case scenario when it comes to caves. First off, caves do not form in squares, never. Caves are formed from erosion, earthquakes and other things, but no matter what made it, they do not form in squares. and another thing, that grass is also, square that is bad. grass is probably even more random than caves. is should be in strange shapes, not squares.
Good
this map is the kind I'll be showing you how to make. It looks fairly natural, like a real cave, except with no visible ceiling and viewed from a birds eye view. If you don't like it then I suggest you hit the back button, now.
Bad
This is the worst case scenario when it comes to caves. First off, caves do not form in squares, never. Caves are formed from erosion, earthquakes and other things, but no matter what made it, they do not form in squares. and another thing, that grass is also, square that is bad. grass is probably even more random than caves. is should be in strange shapes, not squares.
Step #1
Start from scratch.
Create a new map with the desired tileset and size. Fill layer 1 with the main ground tile that you'll be using.
Step #2
Mark your entrance
Using a tile like I used, mark the entrance to the cave.
Step #3
Outline your cave
This is a big one, using the same tile as you used for your entrance, make a quick outline of your cave as you see fit, remember no squares. Remember to make it look natural, not too many straight edges.
Step #4
Fill in the walls
Go over your outline with the wall tiles, using the height you want, and remember to keep the top of the wall over the black tiles.
Step #5
Finish the cave
Finish your outline. After the outline is finished fill in the extra area with the blackish tile as shown.
Step #6
Adding cliffs
Not only do caves not form square, they also don't form flat. So we need to add areas of different elevation. using a cliff tile, outline the area of your cliff. If the cliff comes out of a wall be sure to go into the wall as shown.
Step #7
Replace cliff tiles
Using the same process as before, replace all the cliff tiles as shown.
Step #8
Finish Cliff
Add the cliff tiles to specify height, and edit any walls that the cliff touches.
Step #9
Extend wall
This one is your choice. If you choose to then extend the walls of the cave onto the top of your cliff, using the same method as before.
Step #10
Finish the cave.
Add details to the cliff, rocks, grass, and anything else you want. Just be sure to make it look natural, don't use too many of the same rock or auto tile.
Start from scratch.
Create a new map with the desired tileset and size. Fill layer 1 with the main ground tile that you'll be using.
Step #2
Mark your entrance
Using a tile like I used, mark the entrance to the cave.
Step #3
Outline your cave
This is a big one, using the same tile as you used for your entrance, make a quick outline of your cave as you see fit, remember no squares. Remember to make it look natural, not too many straight edges.
Step #4
Fill in the walls
Go over your outline with the wall tiles, using the height you want, and remember to keep the top of the wall over the black tiles.
Step #5
Finish the cave
Finish your outline. After the outline is finished fill in the extra area with the blackish tile as shown.
Step #6
Adding cliffs
Not only do caves not form square, they also don't form flat. So we need to add areas of different elevation. using a cliff tile, outline the area of your cliff. If the cliff comes out of a wall be sure to go into the wall as shown.
Step #7
Replace cliff tiles
Using the same process as before, replace all the cliff tiles as shown.
Step #8
Finish Cliff
Add the cliff tiles to specify height, and edit any walls that the cliff touches.
Step #9
Extend wall
This one is your choice. If you choose to then extend the walls of the cave onto the top of your cliff, using the same method as before.
Step #10
Finish the cave.
Add details to the cliff, rocks, grass, and anything else you want. Just be sure to make it look natural, don't use too many of the same rock or auto tile.