Mastering Minecraft Ore Generation with SimpleOreGen Mod
If you have ever wanted to reshape the very foundations of your Minecraft world, the SimpleOreGen mod is a tool you need to know about. Although the original mod is no longer actively supported, it remains a powerful solution for players and modpack creators who want absolute control over ore generation, block spawning, and terrain customization. Whether you are fine-tuning a survival challenge or building a custom adventure map, this mod puts the power directly in your hands through easy-to-edit configuration files and in-game commands.
What Makes SimpleOreGen Stand Out
Unlike vanilla Minecraft or many other ore-control mods, SimpleOreGen goes far beyond simply tweaking spawn heights and cluster sizes. Its true strength lies in the ability to define exactly which blocks appear in your world, where they generate, and under what conditions. You can add completely new ores from other mods, blacklist specific biomes, and even decide which dimension a block should spawn in. All of this is managed through a pair of XML files that the mod generates with clear, understandable examples right from the start.
One standout feature is the flat world option. With a single true/false toggle in the config, you can flatten your entire world, making it ideal for testing ore distributions or creating a clean slate for building. This level of simplicity, combined with deep configurability, makes SimpleOreGen a favorite among modpack developers who need to craft a balanced resource economy without writing complex scripts.
Powerful In-Game Commands
SimpleOreGen adds several commands that turn you into a terrain-shaping wizard. Each command works with the block groups you define in the XML, so you can target only the blocks that matter to you.
Clearing Terrain with /clearblocks
The /clearblocks command lets you instantly remove blocks in a square area centered on your player. You specify the X and Z radius, and optionally a block group name. For example, /clearblocks 5 5 ores true will clear a 10x10 area but only remove blocks listed in the "ores" group, leaving everything else untouched. If you omit the group name, the command mines every block in the area. The optional true parameter inverts the selection, so you can clear everything except the specified group — perfect for exposing ore veins while preserving the landscape.
Counting Blocks with /countblocks
Need to know exactly how many diamonds are hiding under your feet? The /countblocks command scans a defined area and returns a total block count, plus a breakdown of any ores if you supply a group name. Usage is simple: /countblocks 5 5 ores will tally all blocks in the 10x10 area and highlight the ore quantities. This is incredibly useful for verifying your custom generation settings or planning mining operations.
Spawning Veins On-Demand with /spawnvein
Perhaps the most creative command is /spawnvein. It allows you to generate a vein of any block at your current X and Z coordinates, with a custom Y level and size. For instance, /spawnvein 10 6 iron_ore places a 6-block iron ore vein starting at Y=10. You can use blocks from any installed mod by writing the full registry name, like immersiveengineering:ore[type=copper]. This feature lets you manually seed resources for quests, build custom caves, or test spawn conditions without waiting for natural generation.
Fine-Tuning Biomes and Dimensions
SimpleOreGen gives you biome-level control through a blacklist system. In the blockoregen.xml file, you can list biome IDs separated by commas, and the mod will prevent the associated block from spawning in those biomes. The default file includes every vanilla biome ID and name, so you can easily pick which ones to exclude. For example, you could make clay never appear in desert biomes or restrict emerald ore to extreme hills only. Remember, the biome name is just for your reference; only the numeric ID matters for the actual logic.
Dimension support is equally robust. You can assign a block to spawn in the Overworld, Nether, End, or any custom dimension by adding dimension IDs to the configuration. The mod also lets you define a block matcher — the block that the ore replaces — per dimension, so your custom nether ores can replace netherrack while overworld ores replace stone. This prevents impossible generation like end stone appearing in the Nether. The hierarchy is smart: biome blacklisting takes priority, so even if a dimension is allowed, the block won't spawn in a blacklisted biome within it.
Metadata and Mod Support
One of the most requested features was metadata block support, and SimpleOreGen delivers. You can now generate blocks with specific properties, such as colored wool, different wood types, or modded ores with variants. In the XML, you write the block's registry name followed by square brackets containing the property. Examples include minecraft:wool[color=black], minecraft:log[axis=y,variant=oak], and forestry:resources[resource=apatite]. This opens the door to incredibly detailed world customization, making the mod compatible with almost any mod that adds blocks.
For players looking for a streamlined way to manage their mods, the foxygame.net launcher offers a convenient, flexible, and modern Minecraft launcher where you can download mods right from the menu, making it simple to add SimpleOreGen to your game without manual file handling. Once installed, the mod automatically generates the XML files with examples, so you can start tweaking ore generation immediately.
Getting Started and Compatibility
SimpleOreGen supports Minecraft versions from 1.8.9 through 1.12.2, making it a great choice for older modpacks. After installation, look for the config folder; you will find simpleoregen.cfg for basic settings and two XML files: blockoregen.xml for defining new blocks to spawn, and commands.xml for customizing the block groups used by commands. The default examples are well-commented and easy to understand, so even if you are new to modding, you can quickly learn how to add your own ores or modify existing ones.
Mod authors can also check for SimpleOreGen's presence and add their ores directly to the XML, ensuring seamless integration. The mod's license and source code are available on GitHub for those interested in the technical details.
Conclusion
SimpleOreGen may no longer receive updates, but its feature set remains impressively complete. From on-the-fly vein spawning and area clearing to intricate biome and dimension rules, this mod hands you the keys to your world's geology. Whether you are building a challenging skyblock map, balancing a tech modpack, or simply experimenting with custom ore distributions, SimpleOreGen provides the tools you need in a straightforward, configurable package. Dive into those XML files, experiment with the commands, and watch your Minecraft world transform block by block.