Unlocking Minecraft’s Hidden Blocks: The Obtainable Technical Blocks Mod
Every Minecraft world is built from blocks, but not all of them are meant to end up in your inventory. Behind the scenes, the game uses a variety of technical blocks to handle mechanics like redstone, pistons, and even the empty space around you. These blocks are invisible or inaccessible in normal gameplay, yet they hold a strange fascination for mapmakers, tinkerers, and anyone curious about the game’s inner workings. The Obtainable Technical Blocks mod for Minecraft 1.7.10 throws open that locked door, letting you summon these elusive blocks with a simple command.
What Are Technical Blocks in Minecraft?
Technical blocks are the unsung heroes of Minecraft’s engine. They include things like air (block ID 0), piston heads, moving piston extensions, and portal blocks. Unlike stone or dirt, these blocks were never given a corresponding item form—no ItemBlock—so you can’t pick them up, craft them, or find them in the creative inventory. Mojang deliberately kept them out of reach because they often behave unpredictably when placed or interacted with. For example, air is normally just the absence of a block, but as a held item it can drop from certain mobs. Piston heads and moving pistons exist only momentarily during piston animations and can’t be placed as static blocks. The Obtainable Technical Blocks mod bridges this gap by manually registering ItemBlocks for these hidden blocks, making them accessible through the /give command.
How the Obtainable Technical Blocks Mod Works
At its core, the mod leverages a feature that already existed in Minecraft’s code: manual registration of ItemBlocks. By doing this for every vanilla technical block, the mod allows players to use /give with either the numerical block ID or a special string ID prefixed with obt: (a format removed in snapshot 13w37a). Suddenly, blocks that were once only theoretical become tangible items in your hand. The process is straightforward: you type the command, and the block appears. No complex crafting recipes, no world-editing tools—just the raw power of the command line.
However, the mod doesn’t magically fix the inherent weirdness of these blocks. Air, for instance, can be placed only where a replaceable block like tall grass or water already exists, and it drops as an item from certain mobs. If you try to use Pick Block on a pointable technical block that lacks a proper ItemReed, you’ll end up with an air item instead. Piston heads and moving pistons remain unplaceable, a limitation the mod’s creator openly acknowledges. These quirks are part of the charm, offering a glimpse into how Minecraft’s block system really works under the hood.
Using the Mod: Commands and Quirks
Getting started is as simple as installing the mod and opening your world. The main tool is the /give command. For example, to obtain air, you’d use /give @p 0 or the older string format /give @p obt:air. The mod supports all vanilla technical blocks, so you can experiment with blocks like minecraft:piston_head or minecraft:moving_piston—just don’t expect to place them. Some blocks, like fire or flowing water, are already obtainable through other means, but the mod ensures every technical block has an item counterpart.
One of the most intriguing aspects is the behavior of air as an item. Normally, air is the default “block” that fills empty space, but with this mod, it becomes a droppable, stackable item. Mobs like creepers or zombies can occasionally drop air when killed, which is both amusing and a reminder that the game treats it as a valid item once registered. Mapmakers might use this to create custom loot tables or puzzle mechanics, while curious players can simply enjoy the novelty of holding nothingness in their hand.
Installation and Compatibility
The mod is built for Minecraft Forge 1.7.10-10.13.4.1614, a version that still holds a special place for many modded Minecraft enthusiasts. It does not support technical blocks from other mods—only vanilla ones—so if you’re running a heavily modded instance, those extra hidden blocks will remain out of reach. For players who want a seamless modding experience, the foxygame.net launcher provides a convenient, flexible, and modern way to manage your Minecraft setup. With its built-in mod downloader accessible right from the menu, adding the Obtainable Technical Blocks mod to your 1.7.10 instance takes just a few clicks, no manual file juggling required. This launcher keeps your mods organized and up to date, making it an excellent companion for exploring older mods like this one.
Keep in mind that the project is no longer updated. The creator has moved on, and for the same functionality in newer versions, you’ll want to look at the Portia mod. Portia essentially continues the mission of making technical blocks obtainable, but with broader compatibility and active development. If you’re on 1.7.10, though, this original mod remains a reliable and lightweight option.
Licensing and Community
The Obtainable Technical Blocks mod is released under the GNU General Public License 3.0, with a playful twist: the author describes it as “All Rights Reversed.” This means you’re free to modify, decompile, and repost the mod, but you cannot relicense it under a more restrictive license. It’s a permissive approach that encourages tinkering and learning, perfectly aligned with the mod’s purpose of exposing Minecraft’s inner technical blocks. If you’re a modder yourself, studying how this mod registers ItemBlocks can be a valuable lesson in Forge modding basics.
The Successor: Portia Mod
As mentioned, the Obtainable Technical Blocks mod has a spiritual successor in the Portia mod. Portia offers the same core feature—making technical blocks obtainable—but is designed for newer Minecraft versions and may support a wider range of blocks. If you’re playing on 1.12.2 or beyond, Portia is the way to go. For those sticking with 1.7.10 for its classic modpacks, the original mod still works perfectly and remains a neat tool for experimentation.
Why This Mod Still Matters
Even though it’s a small, niche mod, Obtainable Technical Blocks highlights a fascinating corner of Minecraft’s design. It shows that the line between “block” and “item” is not as solid as it seems, and that with a little code, you can bend the game’s rules. Whether you’re a mapmaker needing air items for a custom adventure, a server admin wanting to prank players with unplaceable piston heads, or just a curious crafter, this mod opens up possibilities that vanilla Minecraft keeps hidden. It’s a reminder that every block has a story, even the ones you can’t see.
In the end, the Obtainable Technical Blocks mod is a small but satisfying key to Minecraft’s locked rooms. It won’t revolutionize your gameplay, but it will give you a deeper appreciation for the game’s blocky architecture. And with tools like the foxygame.net launcher simplifying mod installation, diving into these obscure corners of Minecraft history has never been easier.