- Abandoned Watchtowers 7.0 – MasterOWS
- Abandoned City Buildings 1.0.0
- AmbientSounds 6.3.8 – CreativeMD
- AppleSkin – squeek
- Architectury 13.0.11 – shedaniel
- Artisan_of_zombie_weapons 6.0.0 – Sgombrio125, MCreator
- Athena 4.0.6 – ThatGravyBoat
- AzureLib 3.1.11 – AzureDoom, Bvanseg, DerToaster, ZigyTheBird, Gecko, Eliot, Chappie, Tslat
- BadOptimizations 2.4.1 – Thosea
- Balm 21.0.65 – BlayTheNinth
- Bandagez Mod 0.2.5 – Anton U.
- Better Advanced Tooltips 2101.1.0-build.5 – latvian.dev
- big lost city 1.0.1 – Leonxkingx + MadeBySanny
- Bookshelf 21.1.81 – Darkhax
- Chipped 4.0.2 – Alex Nijjar, Grimbop, Kekie6, ThatGravyBoat
- Cinch's Abandoned Houses 2.0.1 – Cinchtail
- Citadel 2.7.1 – Alexthe666
- ClientSort 2.2.2+1.21.1 – NotRyken
- Cloth Config v15 API 15.0.140
- Clumps 19.0.0.1 – Jared
- Comforts 9.0.5+1.21.1 – Illusive Soulworks
- Common Networking – Mysticdrew
- Contagion 2.1.1-NeoForge-mc1.21 – Pete MC Mods, mcmods.pete@gmail.com
- Controlling 19.0.5 – Jaredlll08
- CoroUtil 1.21.0-1.3.8 – Corosus
- Corpse 1.21.1-1.1.13 – Max Henkel
- Create 6.0.10 – simibubi
- Create Crafts & Additions 1.6.0 – MRH0
- CreativeCore 2.13.44 – CreativeMD
- Curios API 9.5.1+1.21.1 – C4
- Cubes Without Borders 3.0.0+mc1.21 – Kir_Antipov
- Drippy Loading Screen 3.1.5 – Keksuccino
- Dungeons and Taverns 1-v4.4.4 – NovaWostra, Konci, Walls
- Dynamic Lights 1.9.3+mod – Tschipcraft
- EnhancedVisuals 1.8.31 – CreativeMD, Sonicjumper
- EntityCulling 1.10.5 – tr7zw
- Explorify 1.6.5 – bebebea_loste
- FancyMenu 3.9.11 – Keksuccino
- Farmer's Delight 1.3.3 – vectorwing
- Ferrite Core 7.0.3 – malte0811
- Flashlight 5.0 – TCT
- Fracture Point 3.0.0-PT1-fix – Raiiiden
- Fragmentum 2.4.4 – Obscuria
- Framework 0.13.11 – MrCrayfish
- FTB Filter System 21.1.4 – FTB Team
- FTB Library 2101.1.35 – FTB Team
- FTB Quests 2101.1.34 – FTB Team
- FTB Teams 2101.1.11 – FTB Team
- FTB XMod Compat 21.1.11 – FTB Team
- Fzzy Config 0.7.6+1.21+neoforge – fzzyhmstrs
- Gamingbarn's Zombies 1-V1.16.2-data – Gamingbarn
- GeckoLib 4 4.9.2 – Gecko, Eliot, AzureDoom, DerToaster, Tslat, Witixin
- GlitchCore 2.1.0.2 – Adubbz
- Iceberg 1.3.2 – Grend
- ImmediatelyFast 1.6.13+1.21.1 – RK_01
- Iris 1.8.14-beta.1+mc1.21.1 – coderbot, IMS212
- Jade – Snownee
- Just Enough Items 19.44.0.413 – mezz
- Konkrete 1.9.9 – Keksuccino
- kotlinforforge-5.12.0-all.jar
- KubeJS 2101.7.2-build.374 – latvian.dev
- Legendary Tooltips 1.5.5 – Grend
- Lexiconfig 1.4.21-novel – CodinGlitch
- Loot Beams Refork 3.4.7 – Clefal
- Loot Journal 6.2.1 – Obscuria
- Lootr 1.21.1-1.11.38.124 – Noobanidus
- LostCities
- Macaw's Bridges 3.1.2 – Sketch Macaw & Peachy Macaw
- Macaw's Doors 1.1.5 – Sketch Macaw & Sketch Peachy
- Macaw's Windows 2.4.2 – Sketch Macaw & Peachy Macaw
- Macaw's Roofs 2.3.2 – Sketch Macaw & Sketch Peachy
- Melody 1.0.10 – Keksuccino
- Militaristic Armor 1.0.0 – hudso, MCreator
- ModernFix 5.27.20+mc1.21.1 – embeddedt
- Moonlight Lib 1.21.1-3.5.2 – MehVahdJukaar
- More Culling 1.0.9 – FX - PR0CESS, 1Foxy2
- Mouse Tweaks 2.26.1 – Ivan Molodetskikh (YaLTeR)
- Mutant Monsters 21.1.1 – shcott21, Chumbanotz, Fuzs, tdstress
- Mutants and Zombies 1.3.1-NeoForge-mc1.21 – Pete MC Mods (mcmods.pete@gmail.com), Nice_Try_Boi (design of the models)
- Nirvana Lib 2.2.0 – Clefal
- Noisium 2.7.0+mc1.21-1.21.1 – Steveplays28
- Philip's Ruins 2.0 – Philip, Josiah
- Player Animator 2.0.4+1.21.1 – KosmX
- Prism 1.0.11 – Grend
- Puzzles Lib 21.1.52 – Fuzs
- Quark 4.1-482 – Vazkii, WireSegal, MCVinnyq, Sully
- Rationcraft 1.3.6.3 – Mr. Busdriver and Squeekblach
- Resourceful Lib 3.0.12 – ThatGravyBoat, Epic_Oreo
- Rhino 2101.2.8-build.91 – latvian.dev, Mozilla
- Scorched Guns 1.5 – ribs
- Searchables 1.0.2 – Jaredlll08
- Serene Seasons 10.1.0.3 – Adubbz, Forstride
- SimpleCustomEarlyLoading-2.2-neoforge.jar
- Simple Radio 1.21.1-4.5.7.9 – CodinGlitch
- Sodium 0.8.13-beta.2+mc1.21.1 – JellySquid (jellysquid3), IMS212
- Sophisticated Backpacks 3.25.78 – P3pp3rF1y, Ridanisaurus
- Sophisticated Core 1.4.90 – P3pp3rF1y
- Sophisticated Storage 1.5.91 – P3pp3rF1y, Ridanisaurus
- Sound Physics Remastered 1.21.1-1.4.10 – Sonic Ether, vlad2305m, Max Henkel
- STRAYED FATES: Forsaken 2.0.0.2 – TeraBuildsStuff
- Supplementaries 1.21.1-3.9.3 – MehVahdJukaar, Plantkillable
- tctcore 2.2 – The TCT
- Tough As Nails 10.1.0.13 – Adubbz, Forstride
- UndeadNights 2.2.5-NeoForge-mc1.21 – Pete MC Mods, mcmods.pete@gmail.com
- Simple Voice Chat 1.21.1-2.6.22 – Max Henkel
- Voidless Framework 1.3.0 – Mr. Busdriver
- Waystones 21.1.41 – BlayTheNinth
- Xaero's Minimap 26.4.2 – xaero96
- Xaero's World Map 1.45.0 – xaero96
- YUNG's API 1.21.1-NeoForge-5.1.8 – YUNGNICKYOUNG
- YUNG's Better Dungeons 1.21.1-NeoForge-5.1.4 – YUNGNICKYOUNG, Acarii
- YUNG's Better Mineshafts 1.21.1-NeoForge-5.1.1 – YUNGNICKYOUNG
- Zombie Apocalypse Core 1.1.0
- Zeta 1.1-40 – Vazkii, quat, IThundxr, Siuol, wiresegal, MehVahdJukaar
- Zombie Variants 1.0.3 – Lupin, Craft1x
- Zombie Awareness 1.21.0-1.13.2 – Corosus
- ZombifiedPlayer 1.7.0-NeoForge-mc1.21 – Pete MC Mods (mcmods.pete@gmail.com)
- Zombie Nightmare Expansions 1.2.1 – vllax