Old World Gen Mod is the good old Minecraft world gen from back in the days. I think you will like this mod with this feature.
See also: Fun World Generation Mod
Screenshots:
How to install:
- Download and install Minecraft Forge.
- Download the mod.
- Go to %appdata%.
- Go to .minecraft/mods folder.
- Drag and drop the downloaded jar (zip) file into it.
- If one does not exist you can create one.
- Start Minecraft and create a new world.
- Select the old world gen worldtype.
- Click on the customize button.
- Select a generator you like.
- Click on done.
- Click on create new world.
- Enjoy the mod.
Download Links:
For 1.7.10
http://dl.mod-minecraft.net/download.php?file=a2029906a1ebaab3cebc1da7d2eeb2ff