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Gamma Files: The Lost Update

Merging early-game charm with fresh ideas, this modpack reimagines the Minecraft that never was

File Details

Gamma Files 1.20.1.4.20.4

  • R
  • Apr 26, 2026
  • 408.45 MB
  • 76
  • 1.20.1
  • Forge

File Name

Gamma-Files-1.20.1.4.20.4.zip

Supported Versions

  • 1.20.1

Gamma Files 1.20.1.4.20.4

Another big update!

– Critial fix for the Monster entity! Before 4.20.4 Monsters could get triggerred if looked at even through blocks! Therefore, you might've heard a few of their "triggered" sounds while just peacefully walking on the surface! This has been fixed in this version!
– Monsters' behaviour has been changed a bit: the combat should be a bit more interesting, they teleport a lot back and forth, hit-and-run after attacking you (or once you successfully hit them), and have a chance to disappear completely every time they warp in between the world.
– Monsters now are afraid of... Plate Armor. This might be a strange connection to the material it's made of: Silver.
– Added new Monster sounds.
– Lowered Monster's max health and their attack damage.

– Added new huge dungeon-structure: the Laboratory. Laboratories span all across the Overworld, and are pretty frequent! You can find them by digging straight down: there's a pretty good chance you'll run into them. What was happenning in the Laboratories and their overall story is yet to be discovered. 
– For the Laboratories, I brought back a retextured variant of Deepslate Tiles: Tainted Deepslate Tiles.
– Updated Caverns & Chasms! Meet their new addition: Rats! For now they are pretty useless, just a new ambient mob, like Bats. I will make sure to integrate more features for them.
– Added False Hope flowers and Cave Growths from Caverns & Chasms. 
– Tweaked the, so called "long-forgotten rattle" sound event. You will hear them a bit less frequently. I won't get into too much detail.
– Retextured Beehives! 

> Added Atmospheric! I really liked their Rosewood trees, so here we are! Meet: 
– New Rosewood trees as well as a new (retextured) Rosewood set!
– New Grimwood tree type: Radiant Forests got a new coat of paint, and their stark "inverted-birchy" trees got their own wood type, Grimwood! It's pretty grim! They won't be giving Sap though: I will make sure to bring it back for another wood type later!
– Rosewood Leaves now drop Passionfruit! 
– Swamps now spawn with a new flower type: Water Hyacinths! 

– Retextured Birch Door item and Birch Trapdoors! 
– Retextured Acacia trees.
– Retextured Mud Bricks and changed their sounds! Forgot to retexture the Brittle Mud Bricks, will do later! 
– Retextured Monster Spawners: removed the face from the sides.

> New mechanical addition: Cog Blocks! 
– Meet the Supplementaries' Cog Blocks, a replacement for Rediscovered's Gears! 
– I decided to switch to Cog Blocks as I didn't like the way the Rotational Converter worked. And also Cogs are a bit more easy to integrate into Redstone systems! They also got a fresh retexture.

> Bye-bye Sculk...
– Removed all Sculk-related things (sorry).
– Bye to the Warden.
– Removed Skreechers.
– And all the other stuff.
– I will add a custom replacement for Sculk Sensors soon. Stay tuned.

– New Spawner sounds! Pretty ominous.
– Some new C418 songs.
– Added a better way to filter Advancements (a techincal thing, but still), thanks to Cassian for recommending me the pack.mcmeta filters! 

> Meet the Brick Pyramids... In the Overworld! 
– Brick Pyramids will now spawn in the Overworld! 
– Ruby Eyes now lead to them.
– A the center of the Pyramids you will now always find a Skylands portal! 
– Tweaked the insides of Brick Pyramids: still WIP, yet cleaned it out of all the junk! 

– Retextured some Helper skins.
– Cancelled Drowned spawning with a Trident.
– Changed world generation and terrain generation to be a bit more jagged but less mountainous. 

Gamma Files 1.20.1.4.20.3

– Rebalanced biome weights. Jungles and the snowy biomes are more requent now!

Gamma Files 1.20.1.4.20.2

Massive update... For these past couple of weeks, I've been consumed by the work on the core mod—I've managed to add tons of completely new and custom things, entities and other mechanics! Implement my own Advancement triggers, Statistics, and much-much more!
The main things (I will expand the changelog on the pack's Discord):
– Added 2 new entities: Helpers & Monsters.
– Tweaked Giants: they now have variating skins, new sounds and also—a new "stomping" mechanic. So beware!
– Tweaked the TU-19 Castle—completely revamped its underground. Added more variation to the chests (they spawn in random places there now).
– Tweaked Mineshafts: they now spawn with burnt out torches. And also—you might hear a Mineshaft cave noise every once in a while during your travels around the world... This means there's a Mineshaft somewhere beneath you!
– Added Strongholds back as more common dungeons! There are now Spawners in some of the rooms!
– Tweaked the colors of the sunsets and sunrises: it's now pink!
– Tweaked the Brick Pyramid island!
– Added Cobalt Pants & a Container: as a replacement for the Totem of Holding from Quark! Now, the Totem won't spawn to keep your items—instead, you have to craft the Cobalt (drippy) Pants. If you wear them upon death—a Container block with your items will spawn.
– Fixed the Backpack: now the Recipe Book will also fetch items from there!
– Tweaked like 100 more things, I will expand this changelog more—a bit later! I'm super tired!