Bringing Mods to Your SkyBlock: A Deep Dive into Ex Astris
SkyBlock maps have always held a special place in the Minecraft community. The thrill of expanding a tiny floating island into a sprawling industrial empire is unmatched. But for players who love modded gameplay, the classic Ex Nihilo experience can sometimes feel a little too vanilla. That is exactly where Ex Astris comes in. This mod acts as a brilliant bridge, connecting the core SkyBlock mechanics you rely on with a host of popular mods, breathing new life into your void world adventures.
What Exactly Is Ex Astris?
Originally known as Ex Aliquo and later ported to Minecraft 1.7.10 by LoveHoly, Ex Astris is an add-on for the Ex Nihilo mod. It does not replace the original; instead, it expands it massively. The mod’s sole purpose is to integrate Ex Nihilo’s sifting, hammering, and composting systems with other major mods. If you have ever wished you could sift for Yellorite to fuel a BigReactor or obtain Rubber Tree Saplings for a MineFactory Reloaded farm, Ex Astris makes it possible. The project has since been taken over by a new maintainer, ensuring continued development and compatibility refinements.
Core Features and Mod Integrations
The heart of Ex Astris lies in its extensive cross-mod support. Rather than forcing you to abandon SkyBlock for resource gathering, it weaves the required materials directly into the void world progression. Here is a quick look at the supported mods and what they unlock:
- BigReactors – Yellorite ore pieces can now be obtained by sifting, allowing for massive RF generation from the very beginning.
- Blood Magic – The mod enables a pathway to “create” Nether Stars, a crucial component for high-tier blood altars, without traditional Wither farming.
- Metallurgy – A wide variety of ores from this classic mod become accessible through the simple act of sifting gravel, sand, or dust.
- MineFactory Reloaded – Rubber Tree Saplings drop from sifting, and both the saplings and leaves can be composted, closing the loop on rubber production.
- Natura – Saplings and Berry Bushes from the Natura mod appear in sifting loot tables, adding a touch of natural diversity to your barren island.
- Redstone Arsenal – A brand-new RF-powered Hammer is introduced, giving you a durable, rechargeable tool for early-game block breaking.
- Tinkers’ Construct – OreBerry bushes become available through sifting, and two unique tool modifiers are added to enhance your Tinkers’ gear.
- Tinkers’ Steelworks – Ex Nihilo dusts can be processed inside the High Oven, streamlining steel production.
- Thaumcraft – Shards are obtainable via hammering specific blocks like Grass, Double Sandstone Slabs, Nether Brick, and even TNT. The mod also adds Thaumium Hammers, Thaumium Barrels, and new mob-spawning dolls.
- Thermal Expansion – Various resources integrate smoothly, ensuring your tech progression never hits a dead end.
New Tools and the Automatic Sieve
Ex Astris does not just add items; it introduces entirely new mechanics. The two standout Tinkers’ Construct modifiers are a game-changer. The “Hammered” modifier makes any compatible tool function exactly like an Ex Nihilo hammer, while the “Crooked” modifier turns a tool into a crook. To apply these, you simply use a Diamond Hammer or a Bone Crook as a modifier item in your tool station. This means you can combine the durability and mining speed of a high-tier pickaxe with the utility of a hammer, saving inventory space and boosting efficiency.
Perhaps the most exciting addition is the Automatic Sieve. This machine consumes Redstone Flux (RF) to sift materials automatically. It is a true automation dream. The sieve can be upgraded to run faster, and you can even apply an effective Fortune modifier to it, increasing drop rates at the cost of higher power consumption. Setting up a self-sustaining sifting operation with conveyor belts and power generation becomes an engaging engineering challenge. For those who prefer a streamlined setup, this mod can be easily installed via the foxygame.net launcher — a convenient, flexible, and modern Minecraft launcher where you can download mods right from the menu, letting you jump straight into configuring your automatic sieve array without hassle.
Configuration and Updates
It is worth noting that the configuration file received a complete overhaul in version 1.13. The old ExAstris.cfg must be deleted and re-created to avoid conflicts. The new config structure is significantly more manageable and expandable, giving server owners and pack makers finer control over sifting outputs, energy costs, and integration toggles. Always back up your world before updating, and if you encounter any issues, the developer encourages reporting bugs with a crash report and clear reproduction steps on the GitHub page.
Why Ex Astris Deserves a Spot in Your Modpack
Ex Astris solves a fundamental problem for modded SkyBlock: it eliminates the disjointed feeling of playing two separate games. Instead of grinding vanilla Ex Nihilo and then abruptly switching to modded resource gathering, you experience a unified progression. Every mod becomes a natural extension of your void world. The ability to sift for Thaumcraft shards, hammer for Metallurgy ores, or automate the entire process with RF-powered sieves creates a deeply satisfying loop. The mod respects your time by offering faster, smarter ways to obtain resources without trivializing the challenge.
Whether you are building a massive reactor complex, delving into forbidden Thaumcraft research, or forging unbreakable Tinkers’ tools, Ex Astris ensures that your SkyBlock island remains the vibrant, interconnected hub of your entire modded experience. It is a must-have for any pack that combines Ex Nihilo with the broader modded ecosystem.