What's new
2.5.0.r
This update contains some semi-breaking changes. The update reworks biome distribution, as such there will be some areas between existing terrain and new worldgen where the biomes switch abruptly. The hex grid will remain intact so it won't look TOO bad, but there will be some jank.
We apologize for any inconvenience this might cause, but the benefits of the new system should make themselves apparent quickly. You do NOT need to start a new world.
Warning: An issue has been found where picking up jeb_ sheep with carryon causes rapid flashing of the colors. As such, jeb_ sheep have been removed from natural spawns. Do NOT pick up existing jeb_ sheep.
- The biome selector for each hex has been completely overhauled. @Barza
- A word of warning: You will need to explore outwards to see the new system in action. You might also encounter some harshly mixed hexes at the divide between old terrain and new terrain. Sorry!
- Hexes are no longer grouped up into regions and are instead divided up into three pools. Land, Coastal and Ocean.
- Each pool pulls from a weighted list at random, meaning that biomes will be evenly distributed. New nether, and and void hexes will no longer be clumped together.
- The system respects world seeds, the same seed will have the same biomes at the same hexes.
- The list of available biomes has been greatly expanded. You will see some biomes that weren't generating before, and even some brand new ones!
- The new distribution allows certain hex types, like void hexes, to be more common.
- Some brand new biomes have been designed.
- Three new end biomes themed around the content of Echovoids (@Micomi):
- Pearlescent Cliffs: A pearly white mold has taken over here. This mold favours the growth of certain plants in the chorus family and can glow under the right circumstances.
- Entropic Delta: This land is infested with ender mold...it is looking at me. While you leave, watch your step, as the entropic sludge scattered can be really difficult to get out of.
- Blonde Grove: The area is named from the sulfury yellow nylium covering it. Some luciferase using flora is also found here, recognizable by a distinct bright green glow.
- Sculklands (@Barza): A land completely infested with sculk. You may go in to retrieve the valuable catalysts...but watch out!
- Glimmering Weald (@Barza): Based on the one from Quark, this land is full of assorted glowing fungi and lichens.
- Mystical Grove (@Barza): An absolute treasure trove for the aspiring botanist. The land is infused with mana, turning the grass blue and causing mystical plants to sprout up everywhere. Some have even grown to be several blocks tall! All these flowers have attracted a large population of bees.
- Impact Site (@Barza): This only shows up at the spawn crater and serves to add ambiance...and some failsafes against stuff spawning where it really shouldn't.
- It will only generate in new worlds. For existing worlds, a function has been provided to fill it in. To run it, use the command "/function compression:fill_impact_site_biome"
- Many existing biomes have been tweaked, some new colors, some material veins, some appropriate mob spawns @Micomi
- New recipe chain for IE's Graphite Electrodes, making the Arc Furnace usable @Nyagi
- Several items and blocks in the newly added Echovoids were integrated into the current recipe chains @Nyagi
- Note: said items are not required for current progression in order to avoid forcing far exploration.
- The pure metal items now have a chemlib-style abbreviation, making them easier to tell apart. @Barza
- The abbreviation is only visible in inventories
- Float-separated dusts are marked with a *, to tell them apart from the pure dusts and indicate that they are not quite pure yet.
- The music loading system was replaced @Barza/Doobly
- Should lead to most if not all stuttering being gone
- Added two new music tracks, made by Doobly
- Added [Proton Decay], a new track to the night playlist.
- Added [START], a new track that only plays in the Impact Site biome.
- Some items are now fire resistant @Micomi
- The list includes some common nether blocks, insulating firebricks, endoflames (+floating and mush) and thermalilies (+floating and mush)
New Mods
- Echovoids
- Formations
- Fast Sounds
- Ambience Lite
- LambDynamicLights
Updated Mods
- CompressionTweaks (2.0.4 -> 2.1.0)
- Xekr's Decoration (0.9.3 -> 0.9.7)
- Packages (2026.07.18 -> 2026.08.29)
- Modder Name Lib (2025.12.23 -> 2026.08.29)
- Tasty Tiles (1.1.5 -> 1.2.0)
- Collections of Optimizations (2.4 -> 2.8)
- FastChunkGen (0.22 -> 0.25.2)
- Hexed Structures (1.1.1 -> 1.3.0)
- Blueprint (7.1.3 -> 7.1.5)
- Compressed Engineering (1.4.9 -> 1.4.10)
- Compressed Create Recipes (1.2.7 -> 1.2.8)
- Compressed Botanics (1.1.6 -> 1.1.7)
- Reliable Replacer (1.5.7 -> 1.7.1)
Removed Mods
- MusicTriggers (Replaced by Ambience Lite)
- The Impossible Library (Dependency)
- ClientDynamicLight
New Items @Nyagi
- Fluid: Gas Oil Fraction
- Fluid: Light Oil
- Fluid: Pre-Reflux Fraction
- Fluid: Hydrocarbon Rich Off-gas
- Fluid: Sour Water
- Anode Grade Coke
- Anode Baking Rack
- Wet Coke (Coke that is wet)
- Coke Residue
- Miniaturized High Pressure System
- Porous Insulating Firebrick
- Raw Residual Solids
Removed Items
- Pasteurized Milk (Nuclearcraft, redundant)
- Tin Ore (Nuclearcraft, redundant)
New Recipes
- Haunting Basalt into Blackstone
- Ender Overseer (Takes less ender eyes)
- Ender Watcher (Takes an ender overseer, since it is a fancier version of it)
- Scaled andesite, diorite and granite
- The actual recipe didn't change, but the byproduct is now first, allowing to filter them properly.
Removed Recipes
- Smelting Lead Nuggets into Red Dye. Let's try to keep lead out of dyes this time.
- Every Arc Furnace recycling recipe.
- AE2's Growth Accelerator @Barza
- Basic Function
- Compression-Specific extra functions
- Upgrading the Copper Backtank's capacity @Barza
- Electrostatic Grounding Upgrade for gliders @Barza
- Manasteel Structural Upgrade for gliders @Barza
- Scale tree quests for ink, silicon boules and ceramic @Barza
- The ME system's internal buffers have been significantly increased @Nyagi
- This fixes an issue where vibration chambers were unable to spin up to full power production.
- The obelisk was finally evicted from spawn @Micomi/ExXec
- Many IE blocks are now wrenchable @Micomi
- Added a small resourcepack to give flake a better color on the map. @Micomi
- Wither fossils can now show up in soul sand valleys @Micomi
- Forgiving Void now places you at the actual world height @Nyagi
- Create Basins now accept more inputs and outputs. @Barza
- NB&B's Create-like casings are now wrenchable.
- Glowstone now considers pickaxes as the correct tool. (Not required for drops.) @Barza
- The Excavating enchant now highlights the area it would dig @Barza
- The blocks that would get mined and blocks that wouldn't are highlighted differently
- The three steel trace mixes had their tooltip updated, as they're not quite ready to blast anymore. @Barza
- Supplementaries' Speaker Block tagged as Tier 3 (Yes, that is correct.) @Micomi
- Strengthened the initial cleanup of ground items even further @Barza
- Squids no longer spawn in the BWG dead sea @Micomi
- This is to encourage them spawning elsewhere, where setting up a farm isn't as annoying
- Disabled a rare bwg large terrain structure as it was clashing with the hexes. @Micomi
- Jeb sheep no longer spawn.
- This is to address an issue with CarryOn. DO NOT PICK UP EXISTING JEB SHEEP
- Updated the credits page
Fixes
- The Cacophonium can be crafted again. @Barza
- Loads more tags were fixed @Micomi
- Sticky Packages can now be properly funneled into.
- Packages no longer crash when part of a Create contraption.
- NOTE: Packages are NOT recognized as a proper contraption inventory. Yet.
- Fixed missing names for some OPA-related fluid buckets. @Barza
- Fixed Botania's Bore Lens being able to bore through flake. @Barza
- Quark Framed Glass can no longer be used to make Quark Framed Glass