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Beta Decay

Beta Decay

A Beta Minecraft style psychological horror modpack for Minecraft 1.21.1 that slowly corrupts your world.

624
1

Compatibility

Minecraft: Java Edition

1.21.1

Platforms

Supported environments

Client and server

Creators

avc1657Member

Details

Licensed ARR
Published 8 months ago
Updated yesterday

Beta Decay 2.1.0

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Report

Changelog

Updated most mods.

Added some mods.

Downgraded Golden Days.

Fixed an issue with From the Fog.

Tweaked Particle Rain.

Added some quality of life datapacks.

Other minor tweaks.

Dependencies

dependency-iconPreferred Gamerules Version 1.1.1+1.19.4 is embedded
dependency-iconCrafting Tweaks Version 21.1.6+neoforge-1.21.1 is embedded
dependency-iconYou're in Grave Danger Version 2.0.13 is embedded
dependency-iconDistraction Free Recipes (EMI / REI / JEI) Version 1.2.1 is embedded
dependency-iconSTRAYED FATES: Forsaken Version 2.0.0.2 is embedded
dependency-iconSounds Version 2.4.15+lts+1.21.1-neoforge is embedded
dependency-iconYour Reputation (Jade) Version 0.2.9+jade.1.21.1 is embedded
dependency-iconImmersive Tips Version neoforge-1.21.1-1.0.2 is embedded
dependency-iconForgified Fabric API Version 0.115.6+2.1.4+1.21.1 is embedded
dependency-iconGPUBooster Version 1.0.3-neo is embedded
dependency-iconMidnightLib Version 1.7.5+1.21.1-neoforge is embedded
dependency-iconThreadTweak Version 0.1.5 is embedded
dependency-iconMoonlight Lib Version 1.21-2.25.5 is embedded
dependency-iconWall-Jump TXF Version 1.21.1-1.3.5-neoforge is embedded
dependency-iconAnti Aliasing (TAA, FXAA) Version 1.0.5 is embedded
dependency-iconYeetus Experimentus Version 87.0.0 is embedded
dependency-iconPuzzles Lib Version v21.1.39-1.21.1-NeoForge is embedded
dependency-iconSit Version v1.4 is embedded
dependency-iconFast Items Version 1.1.0-neoforge+1.21 is embedded
dependency-iconoSzoukaua's: Slimy Honey! Version 1.1 is embedded
dependency-iconReese's Sodium Options Version mc1.21.4-1.8.3+neoforge is embedded
dependency-iconPrickle Version 21.1.11 is embedded
dependency-iconRaise Sound Limit Simplified Version 1.1.10+neoforge is embedded
dependency-iconNoisium Version 2.3.0+mc1.21-1.21.1 is embedded
dependency-iconChat Reporting Helper Version 4.35 is embedded
dependency-iconThe Knocker Version 1.5.0 is embedded
dependency-iconLog Begone Version 1.0.3 is embedded
dependency-iconItem Highlighter Version 1.1.11 is embedded
dependency-iconDynamic FPS Version 3.9.5 is embedded
dependency-iconBetter Walls Version 3.5.1 is embedded
dependency-iconLeadRecipeBackport Version v1.0.0+mod is embedded
dependency-iconLeaves Be Gone Version v21.1.0-1.21.1-NeoForge is embedded
dependency-iconPings Version 1.0.1 is embedded
dependency-iconJamLib Version 1.3.5+1.21.1 is embedded
dependency-iconVillager Names Version 1.21.1-8.2-fabric+forge+neo is embedded
dependency-iconOmniBlast: Blast Furnace and Smoker recipe list completed Version 1.48.1+mod is embedded
dependency-iconBetter End Cities Vanilla Version 1.21.1 is embedded
dependency-iconGeckolib Version 4.8.2 is embedded
dependency-iconDrip Sounds Version 0.5.1+1.21.5-neoforge is embedded
dependency-iconBetter Ping Display [Forge/NeoForge] Version 1.21.1-1.1 is embedded
dependency-iconWhat Are They Up To (Watut) Version 1.21.0-1.2.7 is embedded
dependency-iconBetter Advancements Version 0.4.3.21 is embedded
dependency-iconCTR VCR Version v1.2.3 is embedded
dependency-iconEMI Ores Version 1.2+1.21.1+neoforge is embedded
dependency-iconClean F3 Version 0.4.9-neoforge is embedded
dependency-iconCerulean Version neoforge-1.21.1-1.0.0 is embedded
dependency-iconEMI Loot Version 0.7.6+1.21+neoforge is embedded
dependency-iconFixed Anvil Repair Cost Version 1.21.1-3.5-fabric+forge+neo is embedded
dependency-iconSaddle Backport Version 1.0-mod is embedded
dependency-iconClean Tooltips Version 1.1 is embedded
dependency-iconBundle Recipe Version 1.21.1-v1.1.0 is embedded
dependency-iconCrawl Version 0.14.9 is embedded
dependency-iconHorse Buff Version 2.1.8 is embedded
dependency-iconBeltborne Lanterns Version 1.2.3-neoforge is embedded
dependency-iconImmersiveThunder Version 1.21.1+1.2.2 is embedded
dependency-iconContinuity Version 3.0.0+1.21.neoforge is embedded
dependency-iconFog Version 1.11.0+1.21-neoforge is embedded
dependency-iconFzzy Config Version 0.7.3+1.21+neoforge is embedded
dependency-iconEasy Shulker Boxes Version v21.1.3-1.21.1-NeoForge is embedded
dependency-iconThief Version 1.2.2 is embedded
dependency-iconCreativeCore Version 2.13.13 is embedded
dependency-iconNostalgic Tweaks Version 2.0.0-beta.922 is embedded
dependency-iconBetter Lights Version 2.2 is embedded
dependency-iconBiome Particle Weather Version 5.3.1 is embedded
dependency-iconOptiGUI Version 2.3.0-beta.6+1.21 is embedded
dependency-icon[EMF] Entity Model Features Version 2.4.1 is embedded
dependency-iconSound Physics Remastered Version neoforge-1.21.1-1.5.1 is embedded
dependency-iconClient Tweaks Version 21.1.9+neoforge-1.21.1 is embedded
dependency-iconSubstrate Version 4.0 is embedded
dependency-iconTrashSlot Version 21.1.4+neoforge-1.21.1 is embedded
dependency-iconJade 🔍 Version 15.10.3+neoforge is embedded
dependency-iconBetter F1 Reborn Version 1.1 is embedded
dependency-iconSimple Menu Version 1.21.1-2.0-fabric+forge+neo is embedded
dependency-iconSuper Resolution Version 1.21-0.8.1-alpha.1-neoforge is embedded
dependency-iconMovable Block Entities Version 1.1.0 is embedded
dependency-iconBetterGrassify Version 1.7.0+neoforge.1.21.1 is embedded
dependency-iconParticle Effects Version 1.0.7+1.21.1 is embedded
dependency-iconImmediatelyFast Version 1.6.7+1.21.1-neoforge is embedded
dependency-iconSkeleton AI Fix Version v21.1.1-1.21.1-NeoForge is embedded
dependency-iconBetter Biome Reblend Version 1.5.2 is embedded
dependency-iconModel Gap Fix Version 1.21-1.10 is embedded
dependency-iconCompanion 🐕 Version 6.1.1+neoforge is embedded
dependency-iconFerriteCore Version 7.0.2-neoforge is embedded
dependency-iconOmniCut: Better Wood, Copper, and Stone Cutter Version 1.48.1+mod is embedded
dependency-iconno_moon.jar Version 1.5.3 is embedded
dependency-iconWool To String Version 3.0.0-BP is embedded
dependency-iconBrainier Bees Version 1.6 is embedded
dependency-iconBSL Shaders Version 10.0 is embedded
dependency-iconRabbit Pathfinding Fixed Version 1.0.0 is embedded
dependency-iconArchitectury API Version 13.0.8+neoforge is embedded
dependency-iconExperimentalist Version 1.0.0+1.21.1 is embedded
dependency-iconAppleSkin Version 3.0.7+mc1.21 is embedded
Unknown Projectembedded
dependency-iconSearchables Version 1.0.2 is embedded
dependency-iconCentered Crosshair Version 1.0.8 is embedded
dependency-icon[ETF] Entity Texture Features Version 6.2.9 is embedded
dependency-iconSIHYWTCAMD Version 1.11.1+1.21 is embedded
dependency-iconTiny Item Animations Version 1.2.1 is embedded
dependency-iconTxniLib Version neoforge-1.21.1-1.0.24 is embedded
dependency-iconOverlay’sembedded
dependency-iconSpyglass Improvements Version 1.5.7+mc1.21+neoforge is embedded
dependency-iconThorny Bush Protection Version 1.21.1-1.5-fabric+forge+neo is embedded
dependency-iconAnvil Restoration Version 1.21.1-2.4-fabric+forge+neo is embedded
dependency-iconJust Enough Effect Descriptions (JEED) Version 1.21-2.3.0 is embedded
dependency-iconSodium Version mc1.21.1-0.6.13-neoforge is embedded
dependency-iconBalm Version 21.0.54+neoforge-1.21.1 is embedded
dependency-iconPolytone Version 1.21-3.5.10 is embedded
dependency-iconGlobal Packs Version 21.0.6 is embedded
dependency-iconStatus Effect Bars Version 1.0.6 is embedded
dependency-iconMore Chat History Version 1.3.1 is embedded
dependency-iconSmarter Farmers (farmers replant) Version 1.21-2.2.4 is embedded
dependency-iconControlling Version 19.0.5 is embedded
dependency-iconBridging Mod Version 2.6.2+1.21.1.neoforge is embedded
dependency-iconNo Chat Reports Version NeoForge-1.21.1-v2.9.1 is embedded
dependency-iconBetter Safe Bed Version 1.21-16 is embedded
dependency-iconReflex AntiLag Version 1.0.4+mc1.21.1 is embedded
dependency-iconServerCore Version 1.5.10+1.21.1 is embedded
dependency-iconMinecart Turning Version 1.1.0+1.20-1.21 is embedded
dependency-icon3D Skin Layers Version 1.9.2 is embedded
dependency-iconFlower Clusters Version 1.1.2 is embedded
dependency-iconMake Me Shapeless Version 1.2.5+mod is embedded
dependency-iconScalableLux Version 0.1.0.1+neoforge.1cb1e91 is embedded
dependency-iconFemale Gender Mod Version 3.2.2 is embedded
dependency-iconNo Animal Tempt Delay Version 1.21.1-1.2-fabric+forge+neo is embedded
dependency-iconIncreased Rails Recipe Output Version 1.2+mod is embedded
dependency-iconCherished Worlds Version 10.1.1+1.21.1 is embedded
dependency-iconSkip Transitions Version 1.4.0+mc1.21 is embedded
dependency-iconFabric Language Kotlin Version 1.13.4+kotlin.2.2.0 is embedded
dependency-iconShatterLib | OctoLib Version 0.6.0.4 is embedded
dependency-iconEqual Sapling Rates Version 1.1.2+mod is embedded
dependency-iconAudaki Cart Engine (Faster Minecarts) Version 3.1.1 is embedded
dependency-iconModerner Beta Version 3.2.1+1.21.1 is embedded
dependency-iconM.R.U Version 1.0.19+LTS+1.21.1-neoforge is embedded
dependency-iconPower damage fix Version 1.0.0 is embedded
dependency-iconDefault World Type Version 1.21-5.0.4 is embedded
dependency-iconEntity Culling Version 1.9.3 is embedded
dependency-iconAxes Are Weapons Version 1.9.2-neoforge-1.21 is embedded
dependency-iconToo Fast Version 0.4.3.5 is embedded
dependency-iconBetter Ladders Version 0.0.3.1.21 is embedded
dependency-iconConnector Extras Version 1.12.1+1.21.1 is embedded
dependency-iconEMI Version 1.1.22+1.21.1+neoforge is embedded
dependency-iconRecolourful Containers GUI + HUD Version 2.1.2 is embedded
dependency-iconCamera Overhaul Version 2.0.4-neoforge+mc.1.21.0-1.21.1 is embedded
dependency-iconChickensShed Version 1.6.1+mc1.21 is embedded
dependency-iconSodium Extras Version neoforge-1.21.1-1.0.8 is embedded
dependency-iconCoroUtil Version 1.21.0-1.3.8 is embedded
BadOptimizations Version 2.3.1 is embedded
dependency-iconCraftable Gunpowder[MOD] Version 2.0-1.21X is embedded
dependency-iconEnchant Icons Version v1.3 is embedded
dependency-iconHold My Items Version 4.3 is embedded
dependency-iconModernFix Version 5.24.3+mc1.21.1 is embedded
dependency-iconResponsive Shields Version 2.4 is embedded
dependency-iconBetter Than Mending Version 2.2.0 is embedded
dependency-iconFast IP Ping Version v1.0.7-mc1.21.1-neoforge is embedded
dependency-icone4mc Version 5.4.1-neoforge is embedded
dependency-iconSnow Under Trees Version v1.5 is embedded
dependency-iconCarry On Version 2.2.2 is embedded
dependency-iconDeeper Dark Version 3.1.0+mod is embedded
dependency-iconNullscape Version 1.2.14 is embedded
dependency-iconSimple Snowy Fix (Forge / Fabric) Version 2.1.4 is embedded
dependency-iconExtended illumina (NOT ENOUGH ANIMATIONS support) Version 2 is embedded
dependency-iconLambDynamicLights [Unofficial NeoForge] Version 3.1.4-neo-0+1.21.1 is embedded
dependency-iconPick Up Notifier Version v21.1.1-1.21.1-NeoForge is embedded
dependency-iconCut Through Version v21.1.0-1.21.1-NeoForge is embedded
dependency-iconBetter Snow Coverage Version 0.3.2+mc1.21.0 is embedded
dependency-iconLithium Version mc1.21.1-0.15.0-neoforge is embedded
dependency-iconCollective Version 1.21.1-8.13-fabric+forge+neo is embedded
dependency-iconDefault Options Version 21.1.5+neoforge-1.21.1 is embedded
dependency-iconDespawn Tweaks Version neoforge-1.21.1-1.0.0 is embedded
dependency-iconTense Ambience Version 1.7.0 is embedded
dependency-iconOmnilib Version 0.1.4 is embedded
dependency-iconElytra Swapper Version 1.6.2 is embedded
dependency-iconNutritious Milk Version 1.21.1-3.5-fabric+forge+neo is embedded
dependency-iconIris Shaders Version 1.8.12+1.21.1-neoforge is embedded
dependency-iconSodium Options API Version neoforge-1.21.1-1.0.10 is embedded
dependency-iconFlerovium Version 1.0.15 is embedded
dependency-iconSodium Extra Information Version 2.5.1 is embedded
dependency-iconNyf's Spiders Version 2.3.2 is embedded
dependency-iconKiwi 🥝 Version 15.8.1+neoforge is embedded
dependency-iconRandom Enchant Fix Version neoforge-1.21.1-1.0.1 is embedded
dependency-iconEMI Enchanting Version 0.1.2+1.21+neoforge is embedded
dependency-iconNo Mining Cooldown Version 2.3 is embedded
dependency-iconEnhanced Block Entities Version 0.10.2+1.21 is embedded
dependency-iconVocal Villagers Version 1.2 is embedded
dependency-iconInventory Profiles Next Version neoforge-1.21.1-2.2.0 is embedded
dependency-iconSkin Restorer Version 2.4.3+1.21-neoforge is embedded
dependency-iconIceberg Version 1.3.2 is embedded
dependency-iconCopper Grates Bubble Version 2.1+1.21.1 is embedded
dependency-iconEntity Pin Cushions Version 1.0 is embedded
dependency-iconKaffee's Dual Ride Version 1.1.0 is embedded
dependency-iconTrade Cycling Version neoforge-1.21.1-1.0.18 is embedded
dependency-iconNot Enough Recipe Book [NERB] Version 0.4.3 is embedded
dependency-iconCloth Config API Version 15.0.140+neoforge is embedded
dependency-iconParticle Rain Version v4-beta.3+1.21.1-neoforge is embedded
dependency-iconMissing Mob Drops Version 1.2+mod is embedded
Unknown Projectembedded
dependency-iconConcurrent Chunk Management Engine (NeoForge) Version 0.3.0+alpha.0.82+1.21.1 is embedded
dependency-iconStony Cliffs Are Cool Version 1.1.2 is embedded
dependency-iconOverflowing Bars Version v21.1.1-1.21.1-NeoForge is embedded
dependency-iconResourceful Config Version 3.0.11 is embedded
dependency-iconSodium Extra Version mc1.21.1-0.6.0+neoforge is embedded
dependency-iconKryptonFoxified Version 0.1.0+mc1.21 is embedded
dependency-iconAlternate Current Version neoforge-mc1.21-1.9.0 is embedded
dependency-iconImmersive Messages API Version neoforge-1.21.1-1.0.18 is embedded
dependency-iconBetter Third Person Version 1.9.0 is embedded
dependency-iconFIX MY PINGGGGG Version 3.1.0 is embedded
dependency-iconAnvian's Lib Version 1.4.1 is embedded
dependency-iconGolden Days Base Version 1.12.3 is embedded
dependency-iconLeave My Bars Alone Version v21.1.2-1.21.1-NeoForge is embedded
dependency-iconFindMe Version 1.21-3.3.3 is embedded
dependency-iconStructure Layout Optimizer Version 1.0.11+1.21.1-neoforge is embedded
dependency-iconRightClickHarvest Version 4.6.0+1.21.1 is embedded
dependency-iconSinytra Connector Version 2.0.0-beta.9+1.21.1 is embedded
dependency-iconScaffolding Drops Nearby Version 1.21.1-3.4-fabric+forge+neo is embedded
dependency-iconFaster Random Version 5.1.0 is embedded
dependency-iconCraftSense Version 1.1.8 is embedded
dependency-iconIndyPets - Independent Pets Version 1.4.7-1.21 is embedded
dependency-iconFast Paintings Version neoforge_1.21-1.3.0 is embedded
dependency-iconEssential Mod Version 1.3.10 is embedded
dependency-iconOre Harvester Version 1.21.1-1.5-fabric+forge+neo is embedded
dependency-iconEnhancedVisuals Version 1.8.25 is embedded
dependency-iconJust Enough Breeding (JEBr) Version 1.6.2 is embedded
dependency-iconChunky Version 1.4.23 is embedded
dependency-iconMore Culling Version 1.0.6 is embedded
dependency-iconNot Enough Animations Version 1.10.6 is embedded
dependency-iconCraftable Name Tag Version 1.21.1-0.1 is embedded
EyesInTheDarkness-1.21.1-1.4.6.jarAdded via overrides
kotlinforforge-5.10.0-all.jarAdded via overrides
catalogue-neoforge-1.21.1-1.11.2.jarAdded via overrides
AM_variateddeadbushes_v1.1.8_(MC1.21-1.21.7).zipAdded via overrides
EMIProfessions-neoforge-1.21.1-1.0.3.jarAdded via overrides
lanserverproperties-1.13.2-neoforge.jarAdded via overrides
yet_another_config_lib_v3-3.8.0+1.21.1-neoforge.jarAdded via overrides
worldplaytime-1.2.2-1.21-NEOFORGE.jarAdded via overrides
FallingTree-1.21.1-1.21.1.11.jarAdded via overrides
libIPN-neoforge-1.21-6.6.0.jarAdded via overrides
alltheleaks-1.0.6+1.21.1-neoforge.jarAdded via overrides
configured-neoforge-1.21.1-2.6.2.jarAdded via overrides
AM_variatedgrasses_v1.0.9_(MC1.21-1.21.7).zipAdded via overrides

Files

Beta Decay 2.1.0.mrpack(19.14 MiB) Primary
Download

Metadata

Release channel

Beta

Version number

2.1.0

Loaders

NeoForge

Game versions

1.21.1

Environment

Client and server, required on both

Downloads

16

Publication date

October 31, 2025 at 6:54 PM

Publisher

avc1657

Member

Version ID