One of those unique modpacks that elevates Minecraft is called Aliens & Parasites. You have more than enough content to keep playing and exploring with its 97 total mods. The WorldGen Block Replacer is one of Aliens & Parasites' most intriguing features. This enables you to swap out blocks for different blocks during worldgen, greatly increasing the variety of your world and guaranteeing that no two worlds are ever the same. Additionally, you can use this feature to design original buildings and landscapes for your players to explore.