Integrity Zero

Everything you build can fall.

Physics are real: if a block loses support, the structure collapses. It’s not decorative — it changes how you plan, how you build, and how you fight.

But first you need tools. Create gives you gears, trains on rails, diesel generators, and heavy artillery cannons. With Valkyrien Skies you build ships and warships that actually float on water. Every machine you design works or fails based on how you assembled it.

Now go test it. Cross a real ocean between continents, go from summer to winter on the same map, and when the overworld isn’t enough you have portals to the Aether, Blue Skies, and a Nether and End you won’t recognize. Six dimensions total, each with its own rules.

And they’re all alive. A dragon can burn the village you just fortified. Something in the deep caves listens to every block you break. Dungeon bosses have patterns that will force you to craft modular weapons, learn spells, and use every wall as an escape route with parkour. These aren’t fights you win on the first try.

Meanwhile the world breathes. Trees grow and lose leaves with the seasons, your footsteps sound different on wood than on stone, your voice echoes in caverns, and the music shifts on its own when things get dangerous. You don’t get told — you feel it.

Key Features

• Real Physics — Structural collapse, falling debris, smoke, snow accumulation
• Create + 8 Addons — Trains, cannons, diesel generators, electric motors, industrial decor
• Build Your Own Ships — Valkyrien Skies + Eureka: physical boats and airships, block by block
• 6 Dimensions — Redesigned Overworld (80+ biomes), Nether (Flora + Massive Fortresses), End (Alien Flora & New Dungeons), Aether, Everbright, Everdawn
• 100+ Creature Species — Dragons, dark factions, 20+ Enderman tribes, mythic mounts, realistic fauna
• Souls-Style Bosses — Cataclysm mega-bosses with attack patterns in massive dungeons
• Dual Magic Systems — Iron’s Spells + Electroblobs Wizardry
• Modular Weapons — Tetra: craft weapons piece by piece
• Parkour Movement — Wall-jump, climbing, vaulting (ParCool)
• Immersive Audio — Footstep sounds per surface, cave echo, reactive music, enemy sound detection
• Real Seasons — Climate, crops, and visuals change through the year
• Living Flora — Dynamic Trees that grow organically + falling leaves
• Overhauled Structures — 50+ new dungeons, biome-specific villages with armed guards
• Optimized for 4GB RAM — 15 performance mods included

Optional: Physics Mod PRO (Free)

This modpack ships with the standard Physics Mod from CurseForge. For the full experience (advanced smoke, enhanced particle effects), you can optionally download Physics Mod PRO for free from the author’s official Patreon and replace the standard .jar manually in your /mods/ folder:

Download Physics Mod PRO (Patreon – Free)

Steps: Delete the standard physics-mod .jar from your /mods/ folder, download the PRO version from the link above, and drop it in /mods/. Done.

Recommended Shaders (Included)

• BSL v8.4
• Complementary Reimagined r5.7.1 + Euphoria Patches 1.8.6
• Solas Shader V3.6

Resource Packs (Included)

• Faithful 64x Beta 9
• Stay True 1.20
• Perfectly Held Items (Proper torch/lantern handling)

⚠️ Important Engineering Warnings

• Vehicle Size Limits (RAM): This pack is optimized for 4GB of RAM. If you play on this allocation, keep your ships and airships at a realistic size (under 1,500 blocks). Attempting to assemble massive structures (like whole castles) into physical entities will instantly crash your game (Out Of Memory).
• Chain Collapses: The physics engine is ruthless. Using heavy explosives or breaking critical support blocks in caves can trigger massive chain-reaction collapses. Always secure your structures and mine carefully.
• Disassembly Protocol: Never break the Ship Helm block manually to destroy a large assembled ship. Always use the “Disassemble” button in the helm’s menu. Breaking the helm forcefully on a massive, unaligned ship causes a catastrophic block-update spike that will crash the RAM.

Technical

• Minecraft 1.20.1 — Forge
• 102 mods + 35 libraries = 137 JARs
• Recommended RAM: 4-6 GB